Mersenne numbers with smoothest P-1 factors:
Top 100 factors (top 100 per 10M range) listed here
Exponent Factor Bits min B1min B2 Ratio k (factored)
M43,148,9218256832872597128906848976.133974095.3722 × 32 × 97 × 109 × 113 × 137 × 397 × 409
M93,429,0732091880747634206897536174.153734195.6527 × 3 × 5 × 7 × 223 × 239 × 373 × 419
M2,408,587818581227286161840162.833613615.7524 × 3 × 52 × 192 × 83 × 167 × 283
M14,726,4979577496457702738235166.383613615.4452 × 11 × 192 × 23 × 47 × 157 × 193
M5,455,771542536715287134691362.233433435.5124 × 33 × 73 × 11 × 29 × 67 × 157
M59,059,1833606759547420158445192974.933433434.5822 × 3 × 73 × 11 × 41 × 73 × 103 × 131 × 167
M106,798,8733427353744919710644253774.863433434.5822 × 32 × 73 × 11 × 109 × 137 × 239 × 331
M3,290,201468030292889086648162.023373535.6923 × 5 × 7 × 131 × 163 × 337 × 353
M3,562,499304364663875843395161.402933315.393 × 52 × 11 × 19 × 281 × 293 × 331
M13,035,833107716634371445402628769.872933535.053 × 11 × 29 × 47 × 83 × 107 × 293 × 353
M70,349,033902248512026028521437772.932933474.7622 × 11 × 172 × 193 × 257 × 293 × 347
M78,531,4133876087922041620061544175.042933835.1023 × 5 × 59 × 83 × 103 × 109 × 293 × 383
M1,173,63129806949449790631158.052892894.9832 × 5 × 172 × 137 × 263 × 271
M2,005,91946121983315772760158.682892894.9323 × 33 × 52 × 11 × 172 × 37 × 181
M2,321,587232640614531711747361.012893375.5224 × 3 × 7 × 172 × 61 × 251 × 337
M68,398,3495438615846074066837282375.532894395.813 × 112 × 172 × 163 × 211 × 251 × 439
M10,141,06915748824598231932345767.092813475.1725 × 35 × 72 × 11 × 19 × 281 × 347
M20,005,1599118695549107749999366.312813174.7822 × 3 × 79 × 137 × 197 × 281 × 317
M550,1631330644321310586443163.532713495.495 × 72 × 43 × 53 × 229 × 271 × 349
M43,401,37369083934438631896952169.232713835.5323 × 5 × 7 × 17 × 89 × 181 × 271 × 383
M2,324,89958875514668387900159.032692934.9622 × 33 × 53 × 7 × 17 × 269 × 293
M11,802,19110605154259460612519166.522692934.4033 × 5 × 31 × 53 × 257 × 269 × 293
M8,809,1875475378783970829260965.572563174.8328 × 32 × 7 × 13 × 19 × 23 × 107 × 317
M59,149197942168248128150.812512935.7726 × 32 × 5 × 79 × 251 × 293
M823,33755509386514627274358.952512714.6034 × 17 × 59 × 61 × 251 × 271
M913,33723830997496003675157.732432434.2135 × 53 × 113 × 191 × 199
M6,943,6612673450510477163560164.542432433.7723 × 35 × 52 × 11 × 13 × 19 × 61 × 239
M8,115,5511540473648663727107163.742432433.8135 × 5 × 112 × 29 × 31 × 43 × 167
M21,026,7419784170647687326908766.412433114.6835 × 112 × 43 × 61 × 97 × 311
M55,645,649177511189848949868040170.592413595.0923 × 32 × 52 × 23 × 61 × 73 × 241 × 359
M2,841,0314296308838908045398365.222393134.8033 × 23 × 37 × 53 × 83 × 239 × 313
M122,878,5371013832935262112599744773.102392773.793 × 72 × 107 × 173 × 229 × 239 × 277
M138,742,7591646497814180973237355173.802392513.4052 × 19 × 71 × 139 × 211 × 239 × 251
M4,531,2173026583079057212945764.712333735.7623 × 3 × 11 × 19 × 47 × 163 × 233 × 373
M7,174,5295627245779174050920165.612333114.7423 × 52 × 7 × 29 × 31 × 43 × 233 × 311
M58,980,811332615335192742594335171.492332693.7652 × 7 × 17 × 37 × 61 × 67 × 233 × 269
M98,921,0511964583817872706988476155184.022292813.3433 × 52 × 7 × 132 × 17 × 19 × 31 × 193 × 229 × 281
M19,570,2539857162665998508931366.422273535.3124 × 132 × 59 × 197 × 227 × 353
M8,812,3612369597689339317085764.362232293.5622 × 7 × 53 × 113 × 157 × 223 × 229
M7,926,7611130711444099906474361773.262114015.4725 × 33 × 11 × 47 × 113 × 167 × 211 × 401
M389,5314004211472104313755.151992935.3125 × 132 × 163 × 199 × 293
M31,693,3091157576634818899223071173.291992573.515 × 11 × 13 × 19 × 31 × 61 × 139 × 199 × 257
M2,692,643197500938934644427360.781972714.4623 × 3 × 17 × 113 × 149 × 197 × 271
M3,658,201324631830161474065761.491932233.6323 × 73 × 127 × 139 × 193 × 223
M60,383129171274387279950.201912234.443 × 13 × 47 × 137 × 191 × 223
M1,040,15915488793306584294357.101912233.917 × 29 × 79 × 109 × 191 × 223
M10,200,79712278367142302396508966.731912774.1524 × 3 × 7 × 31 × 67 × 163 × 191 × 277
M20,045,49714418835177195971408166.971912413.6024 × 3 × 5 × 43 × 67 × 113 × 191 × 241
M49,839,8091834054527468916509271373.961913474.6922 × 33 × 7 × 23 × 43 × 47 × 79 × 191 × 347
M7,536,8693148766275202441559164.771812774.2832 × 5 × 89 × 101 × 103 × 181 × 277

« Prev 50
Next 50 »
Showing 1 - 50 of 100