Mersenne numbers with smoothest P-1 factors:
Top 1,836 factors (top 100 per 10M range) listed here
Exponents in range: M - M
Exponent Factor Bits min B1 min B2 Ratiok (factored)
M 12334121240805178671747357.561011492.5924 × 34 × 72 × 17 × 53 × 101 × 149
M 1389623696444836549181888162.59671792.8626 × 3 × 5 × 7 × 17 × 31 × 59 × 67 × 179
M 28234375927453047133319902365.681491973.007 × 11 × 13 × 29 × 97 × 127 × 149 × 197
M 4294672660439315569655571364.531091993.0825 × 32 × 31 × 41 × 47 × 83 × 109 × 199
M 989210511964583817872706988476155184.022292813.3433 × 52 × 7 × 132 × 17 × 19 × 31 × 193 × 229 × 281
M 11262316761190468512146454996569779.021812713.4326 × 34 × 7 × 13 × 19 × 37 × 167 × 181 × 271
M 316933091157576634818899223071173.291992573.515 × 11 × 13 × 19 × 31 × 61 × 139 × 199 × 257
M 14896487251257533317067008067171.092232573.623 × 5 × 72 × 17 × 29 × 31 × 131 × 223 × 257
M 56261715285661068813283993034375.482513174.203 × 7 × 11 × 13 × 31 × 47 × 103 × 131 × 251 × 317
M 609025179641068153717631556969.432813114.4823 × 33 × 7 × 29 × 113 × 151 × 281 × 311
M 485553731507167174684040197768.091973114.5722 × 3 × 112 × 23 × 101 × 157 × 197 × 311
M 590591833606759547420158445192974.933433434.5822 × 3 × 73 × 11 × 41 × 73 × 103 × 131 × 167
M 498398091834054527468916509271373.961913474.6922 × 33 × 7 × 23 × 43 × 47 × 79 × 191 × 347
M 46932178124111744804073353766.141673174.7924 × 32 × 73 × 103 × 151 × 167 × 317
M 28410314296308838908045398365.222393134.8033 × 23 × 37 × 53 × 83 × 239 × 313
M 272920992768095600147.581252294.8124 × 32 × 53 × 7 × 31 × 43 × 229
M 914331843007267931559354.031392634.8722 × 34 × 67 × 127 × 139 × 263
M 13035833107716634371445402628769.872933535.053 × 11 × 29 × 47 × 83 × 107 × 293 × 353
M 431489218256832872597128906848976.133974095.3722 × 32 × 97 × 109 × 113 × 137 × 397 × 409
M 15742925155761366191809757.80713115.3823 × 32 × 13 × 29 × 31 × 43 × 71 × 311
M 133139173600905827199332588824174.933794095.4623 × 3 × 5 × 53 × 59 × 67 × 347 × 379 × 409
M 79267611130711444099906474361773.262114015.4725 × 33 × 11 × 47 × 113 × 167 × 211 × 401
M 5501631330644321310586443163.532713495.495 × 72 × 43 × 53 × 229 × 271 × 349
M 683983495438615846074066837282375.532894395.813 × 112 × 172 × 163 × 211 × 251 × 439
M 28050724842165852449657757.791133375.8325 × 7 × 23 × 37 × 61 × 113 × 337
M 421004773728887035265820139163374.981974395.8523 × 33 × 7 × 17 × 41 × 43 × 113 × 197 × 439
M 31894516080770394096770380165.722633895.9222 × 3 × 52 × 31 × 43 × 233 × 263 × 389
M 2158297314549320869404034370924976.952574575.9425 × 32 × 132 × 41 × 73 × 197 × 257 × 457
M 666929270243891667458508961.232563675.9928 × 3 × 7 × 11 × 13 × 43 × 167 × 367
M 17299211700012307661424424763.882573836.003 × 29 × 31 × 83 × 223 × 257 × 383
M 741934147835489232628365860768.703474196.103 × 19 × 109 × 127 × 281 × 347 × 419
M 38244413956985570747112747365.103674016.1623 × 33 × 7 × 67 × 347 × 367 × 401
M 725134196199997215098269295169.704194316.1832 × 52 × 11 × 19 × 73 × 107 × 419 × 431
M 158002272145396922867406620423374.184334636.2422 × 3 × 72 × 89 × 163 × 397 × 433 × 463
M 205253560234759102889175362.281673896.2522 × 3 × 7 × 19 × 23 × 59 × 97 × 167 × 389
M 541782714984982337855314254367.024014216.2819 × 89 × 193 × 251 × 401 × 421
M 26758633794115372787463551965.043834096.293 × 72 × 37 × 53 × 157 × 383 × 409
M 4428701303562997552190001401771.362834616.4625 × 3 × 112 × 17 × 53 × 251 × 283 × 461
M 4701811408801958679221250272171.793894676.5025 × 5 × 29 × 37 × 53 × 263 × 389 × 467
M 10060561314376711470757562983064976.934915036.5422 × 3 × 11 × 43 × 53 × 59 × 163 × 491 × 503
M 342057715695987769223333633767.093834436.6023 × 7 × 11 × 17 × 37 × 349 × 383 × 443
M 6502853956682522742580643219105778.915295296.7023 × 32 × 13 × 232 × 191 × 197 × 449 × 521
M 1196392945693851021338559031168.631814616.7233 × 5 × 103 × 109 × 151 × 181 × 461
M 1357996179476470296273191768169.434634676.7323 × 3 × 5 × 11 × 17 × 37 × 163 × 463 × 467
M 20878092006036096591851475364.123174336.7525 × 7 × 37 × 41 × 103 × 317 × 433
M 61464751130448173805435881544380180.114795416.7522 × 52 × 7 × 11 × 73 × 263 × 277 × 479 × 541
M 120720314406307461435305640181775.225295297.0322 × 32 × 232 × 43 × 113 × 137 × 359 × 401
M 45913831130967397149730004870362444190.085936437.1422 × 3 × 5 × 11 × 397 × 499 × 523 × 547 × 593 × 643
M 102029233401020493157633696670008181.734615877.1823 × 34 × 5 × 7 × 47 × 193 × 353 × 461 × 587
M 390959835079176900505391162.862834577.273 × 5 × 19 × 37 × 41 × 191 × 283 × 457

« Prev 50
Next 50 »
Showing 1 - 50 of 1,836