Mersenne numbers with smoothest P-1 factors:
Top 712 factors (top 100 per 10M range) listed here
ExponentFactor Bits min B1 min B2 Ratio k (factored)
M502,000,0272107472748472812989445447752584121110.70113,7771,099,0819,928.5422 × 5 × 3089 × 12569 × 21617 × 113777 × 1099081
M344,101,117327159431287639319574914584833878554471127.941,595,45326,158,507204,453.963 × 5 × 41 × 139 × 253681 × 525253 × 1595453 × 26158507
M332,264,49715332269681406403050019823853901889113.561,059,06153,935,031474,938.5425 × 3 × 31 × 269 × 504563 × 1059061 × 53935031
M324,000,1692107736488354350041793600141033289110.70529,237934,7238,443.8022 × 32 × 53 × 17761 × 194027 × 529237 × 934723
M136,999,14714927499619906587058135555634367721113.52218,971648,3775,711.3922 × 38 × 5 × 30259 × 96643 × 218971 × 648377
M134,999,1732172255785916506905498043102798927110.74128,20330,232,931273,001.277 × 401 × 16993 × 43517 × 128203 × 30232931
M123,999,52329965428694124514266370746623260209114.53220,217496,0194,330.9523 × 13 × 29 × 1129 × 1871 × 173629 × 220217 × 496019
M118,003,031375397573096806196207057936909987053751128.1498,80124,688,949192,669.143 × 54 × 7 × 11 × 577 × 81647 × 95873 × 98801 × 24688949
M110,111,0112112269817586651744378264912534933423120.671,107,59318,748,679155,373.8132 × 17 × 19 × 29 × 383 × 563 × 25409 × 1107593 × 18748679
M109,999,889666783118027103004225810070701202271119.01173,4972,990,88125,132.465 × 7 × 71 × 4931 × 9067 × 52571 × 173497 × 2990881
M92,617,1931175619298002469430597399521162713999664087139.75127,7276,152,49144,023.593 × 19 × 107 × 199 × 2161 × 6907 × 10181 × 43789 × 127727 × 6152491
M92,215,891137862184728653098584660765343138081116.7314,14382,609707.6924 × 3 × 5 × 83 × 1072 × 233 × 2003 × 6011 × 14143 × 82609
M91,863,601265078803001854591234843130801081107.71124,213344,9593,202.7222 × 32 × 5 × 13 × 647 × 3319 × 6701 × 124213 × 344959
M91,738,8372192040241622848999130542812034729110.76103,4571,807,27716,317.6622 × 3 × 1039 × 60497 × 84713 × 103457 × 1807277
M91,670,963134181122133992527288599975162181783116.6973,721313,8792,689.8233 × 7 × 11 × 31 × 41 × 677 × 1511 × 11701 × 73721 × 313879
M91,440,5992924829772647994045240721904932839111.1734,84943,973395.5432 × 112 × 151 × 3539 × 3823 × 4691 × 34849 × 43973
M91,426,3936676517298558762481364387959135721112.36645,87712,943,981115,198.1822 × 5 × 43 × 113 × 409 × 109883 × 645877 × 12943981
M91,253,25136965466548299915875214320211862704271124.8045,9791,571,23712,590.295 × 11 × 13 × 283 × 16193 × 19603 × 43649 × 45979 × 1571237
M91,251,57144949889661524607566240190812901887115.11396,2171,827,59315,876.393 × 9391 × 32341 × 373301 × 396217 × 1827593
M91,150,649420168247365933163207630527781851871118.34203,4496,114,92951,673.223 × 5 × 13 × 23 × 577 × 13259 × 53993 × 203449 × 6114929
M91,146,359108291064596445813760247955946493089116.3855,4117,612,98165,413.5124 × 13 × 23 × 53 × 73 × 337 × 401 × 563 × 55411 × 7612981
M91,118,239342746434535567036535543246292177108.0829,59945,139417.6523 × 3 × 269 × 3581 × 7507 × 8111 × 29599 × 45139
M91,085,933231305221518604714079956561243019191117.48182,9574,586,89139,044.923 × 5 × 7 × 47 × 109 × 49279 × 57077 × 182957 × 4586891
M91,068,6414221991341726269002954122415938161111.70849,4194,293,07138,433.4123 × 5 × 37 × 317 × 859 × 15773 × 849419 × 4293071
M91,036,4276850122247775772484596715067321113112.4012,227138,3191,230.6022 × 32 × 13 × 23 × 83 × 653 × 3691 × 10331 × 12227 × 138319
M90,993,043164721570914423230778565713392044359116.9992,3631,502,92912,846.921733 × 6263 × 13487 × 44543 × 92363 × 1502929
M90,976,649804619004999167793536922369158447109.3125,34333,529306.733 × 31 × 103 × 139 × 631 × 661 × 9371 × 25343 × 33529
M90,960,127332102845327911778348547844397153108.0365,62996,431892.6024 × 3 × 7 × 17 × 19 × 277 × 2687 × 3571 × 65629 × 96431
M90,883,98773683712459653894665954956209427783115.83415,1591,451,33912,530.243 × 112 × 29 × 47 × 32159 × 42283 × 415159 × 1451339
M90,811,3971547219326436382001828983372582041110.25520,4119,820,38789,071.1322 × 5 × 7 × 13 × 43 × 109 × 195407 × 520411 × 9820387
M90,756,929597249525742769512920252307003937108.88374,4616,203,92756,979.4724 × 7 × 83 × 1181 × 129011 × 374461 × 6203927
M90,646,2235353927286164491335757237684400151112.0470,20710,477,67993,513.7852 × 107 × 163 × 3217 × 28621 × 70207 × 10477679
M90,637,55350372915688071635203772506465064751309351135.21542,401548,8934,059.5752 × 17 × 19 × 61 × 229 × 401 × 95819 × 215351 × 542401 × 548893
M90,606,51712878256674127975911547383924141959113.31127,9518,081,28771,319.8532 × 97 × 239 × 269 × 353 × 3469 × 127951 × 8081287
M90,505,6871454495398390508756475565937688257110.16165,883173,8911,578.4725 × 72 × 23 × 29 × 31 × 59 × 107 × 1361 × 165883 × 173891
M90,458,53179070020978735583739583416025601959115.93102,0592,259,03119,486.3832 × 89 × 571 × 55889 × 74159 × 102059 × 2259031
M90,441,45711763897479847783263590312734545874257123.1558,07360,901494.5423 × 7 × 13 × 31 × 3229 × 4933 × 5867 × 8719 × 58073 × 60901
M90,368,7232062804097524395327964177243306753755087887140.57213,6112,959,30121,052.81421 × 1931 × 3343 × 5569 × 26723 × 44641 × 213611 × 2959301
M90,271,8432674265280335145427766777155537993111.0481,0417,643,89368,837.3822 × 32 × 41 × 47 × 79 × 293 × 14891 × 81041 × 7643893
M90,256,26718856918068731092807853556663127727113.8634,61327,987,497245,804.8383 × 269 × 1201 × 1237 × 3251 × 34613 × 27987497
M90,233,141439678601781169170027757144438063108.44679,2972,434,78722,453.2333 × 43 × 10733 × 118213 × 679297 × 2434787
M90,230,53318679284268158177698225198717247306867073133.78560,0811,804,50113,488.7226 × 35 × 13 × 431 × 1373 × 5273 × 162343 × 560081 × 1804501
M90,178,729564174097925831339888283987640441108.80242,399363,8333,344.1222 × 3 × 5 × 43 × 67 × 2843 × 72173 × 242399 × 363833
M90,174,73186321427076192333924294581766228657116.0620,2974,228,37336,434.1323 × 3 × 37 × 1092 × 137 × 397 × 9719 × 20297 × 4228373
M90,157,63320273897691329317911002965621189489113.97267,5571,654,70314,519.3723 × 3 × 263 × 397 × 877 × 115561 × 267557 × 1654703
M90,126,433284799487774033594964085810386474865767127.7447,11912,856,153100,640.597 × 19 × 223 × 271 × 2273 × 6257 × 22817 × 47119 × 12856153
M90,088,513427485710629043080092112214551970681118.3636,5293,208,21127,104.7622 × 5 × 2027 × 2339 × 7727 × 27631 × 36529 × 3208211
M90,055,067925101102144121238029481002949999109.51421,3033,908,70135,692.2111 × 29 × 82261 × 118861 × 421303 × 3908701
M89,953,4712788993444537242575813230277100487111.10640,1531,533,79313,805.103 × 41 × 577 × 14779 × 15053 × 640153 × 1533793
M89,925,9077025430601536239389137310812034817112.44282,7691,371,58912,198.8227 × 72 × 11 × 307 × 2141 × 2221 × 282769 × 1371589

« Prev 50
Next 50 »
Showing 1 - 50 of 712