Logo Search packages:      
Sourcecode: cdk version File versions

Primes.java

/*  $RCSfile$
 *  $Author: egonw $
 *  $Date: 2007-10-14 23:02:38 +0200 (Sun, 14 Oct 2007) $
 *  $Revision: 9072 $
 *
 *  Copyright (C) 2002-2007  The Chemistry Development Kit (CDK) Project
 *
 *  Contact: cdk-devel@lists.sourceforge.net
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1
 * of the License, or (at your option) any later version.
 * All we ask is that proper credit is given for our work, which includes
 * - but is not limited to - adding the above copyright notice to the beginning
 * of your source code files, and to any copyright notice that you may distribute
 * with programs based on this work.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *  */
package org.openscience.cdk.math;

/**
 * @cdk.module standard
 *
 * @author  Oliver Horlacher <oliver.horlacher@therastrat.com>
 * @cdk.created 2002-02-26
 *
 * @cdk.keyword prime numbers
 */
00038 public class Primes {

  private static final int[] PRIMES = { 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73,
79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163,
167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251,
257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349,
353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443,
449, 457, 461, 463, 467, 479, 487, 491, 499, 503, 509, 521, 523, 541, 547, 557,
563, 569, 571, 577, 587, 593, 599, 601, 607, 613, 617, 619, 631, 641, 643, 647,
653, 659, 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, 751, 757,
761, 769, 773, 787, 797, 809, 811, 821, 823, 827, 829, 839, 853, 857, 859, 863,
877, 881, 883, 887, 907, 911, 919, 929, 937, 941, 947, 953, 967, 971, 977, 983,
991, 997, 1009, 1013, 1019, 1021, 1031, 1033, 1039, 1049, 1051, 1061, 1063, 1069,
1087, 1091, 1093, 1097, 1103, 1109, 1117, 1123, 1129, 1151, 1153, 1163, 1171,
1181, 1187, 1193, 1201, 1213, 1217, 1223, 1229, 1231, 1237, 1249, 1259, 1277,
1279, 1283, 1289, 1291, 1297, 1301, 1303, 1307, 1319, 1321, 1327, 1361, 1367,
1373, 1381, 1399, 1409, 1423, 1427, 1429, 1433, 1439, 1447, 1451, 1453, 1459,
1471, 1481, 1483, 1487, 1489, 1493, 1499, 1511, 1523, 1531, 1543, 1549, 1553,
1559, 1567, 1571, 1579, 1583, 1597, 1601, 1607, 1609, 1613, 1619, 1621, 1627,
1637, 1657, 1663, 1667, 1669, 1693, 1697, 1699, 1709, 1721, 1723, 1733, 1741,
1747, 1753, 1759, 1777, 1783, 1787, 1789, 1801, 1811, 1823, 1831, 1847, 1861,
1867, 1871, 1873, 1877, 1879, 1889, 1901, 1907, 1913, 1931, 1933, 1949, 1951,
1973, 1979, 1987, 1993, 1997, 1999, 2003, 2011, 2017, 2027, 2029, 2039, 2053,
2063, 2069, 2081, 2083, 2087, 2089, 2099, 2111, 2113, 2129, 2131, 2137, 2141,
2143, 2153, 2161, 2179, 2203, 2207, 2213, 2221, 2237, 2239, 2243, 2251, 2267,
2269, 2273, 2281, 2287, 2293, 2297, 2309, 2311, 2333, 2339, 2341, 2347, 2351,
2357, 2371, 2377, 2381, 2383, 2389, 2393, 2399, 2411, 2417, 2423, 2437, 2441,
2447, 2459, 2467, 2473, 2477, 2503, 2521, 2531, 2539, 2543, 2549, 2551, 2557,
2579, 2591, 2593, 2609, 2617, 2621, 2633, 2647, 2657, 2659, 2663, 2671, 2677,
2683, 2687, 2689, 2693, 2699, 2707, 2711, 2713, 2719, 2729, 2731, 2741, 2749,
2753, 2767, 2777, 2789, 2791, 2797, 2801, 2803, 2819, 2833, 2837, 2843, 2851,
2857, 2861, 2879, 2887, 2897, 2903, 2909, 2917, 2927, 2939, 2953, 2957, 2963,
2969, 2971, 2999, 3001, 3011, 3019, 3023, 3037, 3041, 3049, 3061, 3067, 3079,
3083, 3089, 3109, 3119, 3121, 3137, 3163, 3167, 3169, 3181, 3187, 3191, 3203,
3209, 3217, 3221, 3229, 3251, 3253, 3257, 3259, 3271, 3299, 3301, 3307, 3313,
3319, 3323, 3329, 3331, 3343, 3347, 3359, 3361, 3371, 3373, 3389, 3391, 3407,
3413, 3433, 3449, 3457, 3461, 3463, 3467, 3469, 3491, 3499, 3511, 3517, 3527,
3529, 3533, 3539, 3541, 3547, 3557, 3559, 3571, 3581, 3583, 3593, 3607, 3613,
3617, 3623, 3631, 3637, 3643, 3659, 3671, 3673, 3677, 3691, 3697, 3701, 3709,
3719, 3727, 3733, 3739, 3761, 3767, 3769, 3779, 3793, 3797, 3803, 3821, 3823,
3833, 3847, 3851, 3853, 3863, 3877, 3881, 3889, 3907, 3911, 3917, 3919, 3923,
3929, 3931, 3943, 3947, 3967, 3989, 4001, 4003, 4007, 4013, 4019, 4021, 4027,
4049, 4051, 4057, 4073, 4079, 4091, 4093, 4099, 4111, 4127, 4129, 4133, 4139,
4153, 4157, 4159, 4177, 4201, 4211, 4217, 4219, 4229, 4231, 4241, 4243, 4253,
4259, 4261, 4271, 4273, 4283, 4289, 4297, 4327, 4337, 4339, 4349, 4357, 4363,
4373, 4391, 4397, 4409, 4421, 4423, 4441, 4447, 4451, 4457, 4463, 4481, 4483,
4493, 4507, 4513, 4517, 4519, 4523, 4547, 4549, 4561, 4567, 4583, 4591, 4597,
4603, 4621, 4637, 4639, 4643, 4649, 4651, 4657, 4663, 4673, 4679, 4691, 4703,
4721, 4723, 4729, 4733, 4751, 4759, 4783, 4787, 4789, 4793, 4799, 4801, 4813,
4817, 4831, 4861, 4871, 4877, 4889, 4903, 4909, 4919, 4931, 4933, 4937, 4943,
4951, 4957, 4967, 4969, 4973, 4987, 4993, 4999, 5003, 5009, 5011, 5021, 5023,
5039, 5051, 5059, 5077, 5081, 5087, 5099, 5101, 5107, 5113, 5119, 5147, 5153,
5167, 5171, 5179, 5189, 5197, 5209, 5227, 5231, 5233, 5237, 5261, 5273, 5279,
5281, 5297, 5303, 5309, 5323, 5333, 5347, 5351, 5381, 5387, 5393, 5399, 5407,
5413, 5417, 5419, 5431, 5437, 5441, 5443, 5449, 5471, 5477, 5479, 5483, 5501,
5503, 5507, 5519, 5521, 5527, 5531, 5557, 5563, 5569, 5573, 5581, 5591, 5623,
5639, 5641, 5647, 5651, 5653, 5657, 5659, 5669, 5683, 5689, 5693, 5701, 5711,
5717, 5737, 5741, 5743, 5749, 5779, 5783, 5791, 5801, 5807, 5813, 5821, 5827,
5839, 5843, 5849, 5851, 5857, 5861, 5867, 5869, 5879, 5881, 5897, 5903, 5923,
5927, 5939, 5953, 5981, 5987, 6007, 6011, 6029, 6037, 6043, 6047, 6053, 6067,
6073, 6079, 6089, 6091, 6101, 6113, 6121, 6131, 6133, 6143, 6151, 6163, 6173,
6197, 6199, 6203, 6211, 6217, 6221, 6229, 6247, 6257, 6263, 6269, 6271, 6277,
6287, 6299, 6301, 6311, 6317, 6323, 6329, 6337, 6343, 6353, 6359, 6361, 6367,
6373, 6379, 6389, 6397, 6421, 6427, 6449, 6451, 6469, 6473, 6481, 6491, 6521,
6529, 6547, 6551, 6553, 6563, 6569, 6571, 6577, 6581, 6599, 6607, 6619, 6637,
6653, 6659, 6661, 6673, 6679, 6689, 6691, 6701, 6703, 6709, 6719, 6733, 6737,
6761, 6763, 6779, 6781, 6791, 6793, 6803, 6823, 6827, 6829, 6833, 6841, 6857,
6863, 6869, 6871, 6883, 6899, 6907, 6911, 6917, 6947, 6949, 6959, 6961, 6967,
6971, 6977, 6983, 6991, 6997, 7001, 7013, 7019, 7027, 7039, 7043, 7057, 7069,
7079, 7103, 7109, 7121, 7127, 7129, 7151, 7159, 7177, 7187, 7193, 7207, 7211,
7213, 7219, 7229, 7237, 7243, 7247, 7253, 7283, 7297, 7307, 7309, 7321, 7331,
7333, 7349, 7351, 7369, 7393, 7411, 7417, 7433, 7451, 7457, 7459, 7477, 7481,
7487, 7489, 7499, 7507, 7517, 7523, 7529, 7537, 7541, 7547, 7549, 7559, 7561,
7573, 7577, 7583, 7589, 7591, 7603, 7607, 7621, 7639, 7643, 7649, 7669, 7673,
7681, 7687, 7691, 7699, 7703, 7717, 7723, 7727, 7741, 7753, 7757, 7759, 7789,
7793, 7817, 7823, 7829, 7841, 7853, 7867, 7873, 7877, 7879, 7883, 7901, 7907,
7919, 7927, 7933, 7937, 7949, 7951, 7963, 7993, 8009, 8011, 8017, 8039, 8053,
8059, 8069, 8081, 8087, 8089, 8093, 8101, 8111, 8117, 8123, 8147, 8161, 8167,
8171, 8179, 8191, 8209, 8219, 8221, 8231, 8233, 8237, 8243, 8263, 8269, 8273,
8287, 8291, 8293, 8297, 8311, 8317, 8329, 8353, 8363, 8369, 8377, 8387, 8389,
8419, 8423, 8429, 8431, 8443, 8447, 8461, 8467, 8501, 8513, 8521, 8527, 8537,
8539, 8543, 8563, 8573, 8581, 8597, 8599, 8609, 8623, 8627, 8629, 8641, 8647,
8663, 8669, 8677, 8681, 8689, 8693, 8699, 8707, 8713, 8719, 8731, 8737, 8741,
8747, 8753, 8761, 8779, 8783, 8803, 8807, 8819, 8821, 8831, 8837, 8839, 8849,
8861, 8863, 8867, 8887, 8893, 8923, 8929, 8933, 8941, 8951, 8963, 8969, 8971,
8999, 9001, 9007, 9011, 9013, 9029, 9041, 9043, 9049, 9059, 9067, 9091, 9103,
9109, 9127, 9133, 9137, 9151, 9157, 9161, 9173, 9181, 9187, 9199, 9203, 9209,
9221, 9227, 9239, 9241, 9257, 9277, 9281, 9283, 9293, 9311, 9319, 9323, 9337,
9341, 9343, 9349, 9371, 9377, 9391, 9397, 9403, 9413, 9419, 9421, 9431, 9433,
9437, 9439, 9461, 9463, 9467, 9473, 9479, 9491, 9497, 9511, 9521, 9533, 9539,
9547, 9551, 9587, 9601, 9613, 9619, 9623, 9629, 9631, 9643, 9649, 9661, 9677,
9679, 9689, 9697, 9719, 9721, 9733, 9739, 9743, 9749, 9767, 9769, 9781, 9787,
9791, 9803, 9811, 9817, 9829, 9833, 9839, 9851, 9857, 9859, 9871, 9883, 9887,
9901, 9907, 9923, 9929, 9931, 9941, 9949, 9967, 9973, 10007, 10009, 10037, 10039,
10061, 10067, 10069, 10079, 10091, 10093, 10099, 10103, 10111, 10133, 10139,
10141, 10151, 10159, 10163, 10169, 10177, 10181, 10193, 10211, 10223, 10243,
10247, 10253, 10259, 10267, 10271, 10273, 10289, 10301, 10303, 10313, 10321,
10331, 10333, 10337, 10343, 10357, 10369, 10391, 10399, 10427, 10429, 10433,
10453, 10457, 10459, 10463, 10477, 10487, 10499, 10501, 10513, 10529, 10531,
10559, 10567, 10589, 10597, 10601, 10607, 10613, 10627, 10631, 10639, 10651,
10657, 10663, 10667, 10687, 10691, 10709, 10711, 10723, 10729, 10733, 10739,
10753, 10771, 10781, 10789, 10799, 10831, 10837, 10847, 10853, 10859, 10861,
10867, 10883, 10889, 10891, 10903, 10909, 10937, 10939, 10949, 10957, 10973,
10979, 10987, 10993, 11003, 11027, 11047, 11057, 11059, 11069, 11071, 11083,
11087, 11093, 11113, 11117, 11119, 11131, 11149, 11159, 11161, 11171, 11173,
11177, 11197, 11213, 11239, 11243, 11251, 11257, 11261, 11273, 11279, 11287,
11299, 11311, 11317, 11321, 11329, 11351, 11353, 11369, 11383, 11393, 11399,
11411, 11423, 11437, 11443, 11447, 11467, 11471, 11483, 11489, 11491, 11497,
11503, 11519, 11527, 11549, 11551, 11579, 11587, 11593, 11597, 11617, 11621,
11633, 11657, 11677, 11681, 11689, 11699, 11701, 11717, 11719, 11731, 11743,
11777, 11779, 11783, 11789, 11801, 11807, 11813, 11821, 11827, 11831, 11833,
11839, 11863, 11867, 11887, 11897, 11903, 11909, 11923, 11927, 11933, 11939,
11941, 11953, 11959, 11969, 11971, 11981, 11987, 12007, 12011, 12037, 12041,
12043, 12049, 12071, 12073, 12097, 12101, 12107, 12109, 12113, 12119, 12143,
12149, 12157, 12161, 12163, 12197, 12203, 12211, 12227, 12239, 12241, 12251,
12253, 12263, 12269, 12277, 12281, 12289, 12301, 12323, 12329, 12343, 12347,
12373, 12377, 12379, 12391, 12401, 12409, 12413, 12421, 12433, 12437, 12451,
12457, 12473, 12479, 12487, 12491, 12497, 12503, 12511, 12517, 12527, 12539,
12541, 12547, 12553, 12569, 12577, 12583, 12589, 12601, 12611, 12613, 12619,
12637, 12641, 12647, 12653, 12659, 12671, 12689, 12697, 12703, 12713, 12721,
12739, 12743, 12757, 12763, 12781, 12791, 12799, 12809, 12821, 12823, 12829,
12841, 12853, 12889, 12893, 12899, 12907, 12911, 12917, 12919, 12923, 12941,
12953, 12959, 12967, 12973, 12979, 12983, 13001, 13003, 13007, 13009, 13033,
13037, 13043, 13049, 13063, 13093, 13099, 13103, 13109, 13121, 13127, 13147,
13151, 13159, 13163, 13171, 13177, 13183, 13187, 13217, 13219, 13229, 13241,
13249, 13259, 13267, 13291, 13297, 13309, 13313, 13327, 13331, 13337, 13339,
13367, 13381, 13397, 13399, 13411, 13417, 13421, 13441, 13451, 13457, 13463,
13469, 13477, 13487, 13499, 13513, 13523, 13537, 13553, 13567, 13577, 13591,
13597, 13613, 13619, 13627, 13633, 13649, 13669, 13679, 13681, 13687, 13691,
13693, 13697, 13709, 13711, 13721, 13723, 13729, 13751, 13757, 13759, 13763,
13781, 13789, 13799, 13807, 13829, 13831, 13841, 13859, 13873, 13877, 13879,
13883, 13901, 13903, 13907, 13913, 13921, 13931, 13933, 13963, 13967, 13997,
13999, 14009, 14011, 14029, 14033, 14051, 14057, 14071, 14081, 14083, 14087,
14107, 14143, 14149, 14153, 14159, 14173, 14177, 14197, 14207, 14221, 14243,
14249, 14251, 14281, 14293, 14303, 14321, 14323, 14327, 14341, 14347, 14369,
14387, 14389, 14401, 14407, 14411, 14419, 14423, 14431, 14437, 14447, 14449,
14461, 14479, 14489, 14503, 14519, 14533, 14537, 14543, 14549, 14551, 14557,
14561, 14563, 14591, 14593, 14621, 14627, 14629, 14633, 14639, 14653, 14657,
14669, 14683, 14699, 14713, 14717, 14723, 14731, 14737, 14741, 14747, 14753,
14759, 14767, 14771, 14779, 14783, 14797, 14813, 14821, 14827, 14831, 14843,
14851, 14867, 14869, 14879, 14887, 14891, 14897, 14923, 14929, 14939, 14947,
14951, 14957, 14969, 14983, 15013, 15017, 15031, 15053, 15061, 15073, 15077,
15083, 15091, 15101, 15107, 15121, 15131, 15137, 15139, 15149, 15161, 15173,
15187, 15193, 15199, 15217, 15227, 15233, 15241, 15259, 15263, 15269, 15271,
15277, 15287, 15289, 15299, 15307, 15313, 15319, 15329, 15331, 15349, 15359,
15361, 15373, 15377, 15383, 15391, 15401, 15413, 15427, 15439, 15443, 15451,
15461, 15467, 15473, 15493, 15497, 15511, 15527, 15541, 15551, 15559, 15569,
15581, 15583, 15601, 15607, 15619, 15629, 15641, 15643, 15647, 15649, 15661,
15667, 15671, 15679, 15683, 15727, 15731, 15733, 15737, 15739, 15749, 15761,
15767, 15773, 15787, 15791, 15797, 15803, 15809, 15817, 15823, 15859, 15877,
15881, 15887, 15889, 15901, 15907, 15913, 15919, 15923, 15937, 15959, 15971,
15973, 15991, 16001, 16007, 16033, 16057, 16061, 16063, 16067, 16069, 16073,
16087, 16091, 16097, 16103, 16111, 16127, 16139, 16141, 16183, 16187, 16189,
16193, 16217, 16223, 16229, 16231, 16249, 16253, 16267, 16273, 16301, 16319,
16333, 16339, 16349, 16361, 16363, 16369, 16381, 16411, 16417, 16421, 16427,
16433, 16447, 16451, 16453, 16477, 16481, 16487, 16493, 16519, 16529, 16547,
16553, 16561, 16567, 16573, 16603, 16607, 16619, 16631, 16633, 16649, 16651,
16657, 16661, 16673, 16691, 16693, 16699, 16703, 16729, 16741, 16747, 16759,
16763, 16787, 16811, 16823, 16829, 16831, 16843, 16871, 16879, 16883, 16889,
16901, 16903, 16921, 16927, 16931, 16937, 16943, 16963, 16979, 16981, 16987,
16993, 17011, 17021, 17027, 17029, 17033, 17041, 17047, 17053, 17077, 17093,
17099, 17107, 17117, 17123, 17137, 17159, 17167, 17183, 17189, 17191, 17203,
17207, 17209, 17231, 17239, 17257, 17291, 17293, 17299, 17317, 17321, 17327,
17333, 17341, 17351, 17359, 17377, 17383, 17387, 17389, 17393, 17401, 17417,
17419, 17431, 17443, 17449, 17467, 17471, 17477, 17483, 17489, 17491, 17497,
17509, 17519, 17539, 17551, 17569, 17573, 17579, 17581, 17597, 17599, 17609,
17623, 17627, 17657, 17659, 17669, 17681, 17683, 17707, 17713, 17729, 17737,
17747, 17749, 17761, 17783, 17789, 17791, 17807, 17827, 17837, 17839, 17851,
17863, 17881, 17891, 17903, 17909, 17911, 17921, 17923, 17929, 17939, 17957,
17959, 17971, 17977, 17981, 17987, 17989, 18013, 18041, 18043, 18047, 18049,
18059, 18061, 18077, 18089, 18097, 18119, 18121, 18127, 18131, 18133, 18143,
18149, 18169, 18181, 18191, 18199, 18211, 18217, 18223, 18229, 18233, 18251,
18253, 18257, 18269, 18287, 18289, 18301, 18307, 18311, 18313, 18329, 18341,
18353, 18367, 18371, 18379, 18397, 18401, 18413, 18427, 18433, 18439, 18443,
18451, 18457, 18461, 18481, 18493, 18503, 18517, 18521, 18523, 18539, 18541,
18553, 18583, 18587, 18593, 18617, 18637, 18661, 18671, 18679, 18691, 18701,
18713, 18719, 18731, 18743, 18749, 18757, 18773, 18787, 18793, 18797, 18803,
18839, 18859, 18869, 18899, 18911, 18913, 18917, 18919, 18947, 18959, 18973,
18979, 19001, 19009, 19013, 19031, 19037, 19051, 19069, 19073, 19079, 19081,
19087, 19121, 19139, 19141, 19157, 19163, 19181, 19183, 19207, 19211, 19213,
19219, 19231, 19237, 19249, 19259, 19267, 19273, 19289, 19301, 19309, 19319,
19333, 19373, 19379, 19381, 19387, 19391, 19403, 19417, 19421, 19423, 19427,
19429, 19433, 19441, 19447, 19457, 19463, 19469, 19471, 19477, 19483, 19489,
19501, 19507, 19531, 19541, 19543, 19553, 19559, 19571, 19577, 19583, 19597,
19603, 19609, 19661, 19681, 19687, 19697};

  /**
   * Returns the i-th prime number in the sequence of
   * all prime numbers below 19700. The first in the sequence
   * (n=0) is the prime number 2.
   */
00229   public static int getPrimeAt(int index) {
    if(index < 0 || index > PRIMES.length -1)
      throw new ArrayIndexOutOfBoundsException("out of range " + index);
    return PRIMES[index];
  }
}

Generated by  Doxygen 1.6.0   Back to index