Home e-mail
Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.
Exponent Prime Factor Digits Year
21908483438169678 ~1988
21908651438173038 ~1988
219086712190867119 ~1990
219089871752718979 ~1990
219091011752728099 ~1990
21909743438194878 ~1988
21909911438198238 ~1988
21910799438215998 ~1988
21911003438220078 ~1988
21911231438224638 ~1988
21911891438237838 ~1988
219120471752963779 ~1990
219121731314730399 ~1989
21912419438248398 ~1988
21912431438248638 ~1988
219127992191279919 ~1990
21913499438269998 ~1988
219137113944467999 ~1991
21914339438286798 ~1988
219145331314871999 ~1989
219145392191453919 ~1990
21914591438291838 ~1988
21914891438297838 ~1988
21915119438302398 ~1988
21915191438303838 ~1988
Exponent Prime Factor Digits Year
219156293068188079 ~1990
219158232191582319 ~1990
21916379438327598 ~1988
219163931314983599 ~1989
219165375465984327911 ~1996
21916871438337438 ~1988
21916991438339838 ~1988
21917639438352798 ~1988
219176832191768319 ~1990
21917783438355678 ~1988
219183073506929139 ~1991
21918443438368878 ~1988
21918791438375838 ~1988
219190191753521539 ~1990
21919223438384478 ~1988
21919259438385198 ~1988
21919763438395278 ~1988
21919823438396478 ~1988
219198312191983119 ~1990
219204134822490879 ~1991
21920831438416638 ~1988
21920891438417838 ~1988
21920903438418078 ~1988
21920963438419278 ~1988
219210171315261039 ~1989
Exponent Prime Factor Digits Year
21921059438421198 ~1988
219213373507413939 ~1991
21921359438427198 ~1988
21921803438436078 ~1988
21922091438441838 ~1988
21922319438446398 ~1988
21922559438451198 ~1988
21922619438452398 ~1988
21923411438468238 ~1988
219243373507893939 ~1991
21924839438496798 ~1988
219250211315501279 ~1989
21925103438502078 ~1988
219253331315519999 ~1989
21925511438510238 ~1988
219255733508091699 ~1991
21925751438515038 ~1988
219258371315550239 ~1989
21926519438530398 ~1988
21926939438538798 ~1988
219275175262604099 ~1991
219277331315663999 ~1989
219279495262707779 ~1991
21928619438572398 ~1988
219287571315725439 ~1989
Exponent Prime Factor Digits Year
21928883438577678 ~1988
219292936578787919 ~1991
21929639438592798 ~1988
21929903438598078 ~1988
219303471754427779 ~1990
21930383438607678 ~1988
219304973070269599 ~1990
21930791438615838 ~1988
21930803438616078 ~1988
21931271438625438 ~1988
219314472193144719 ~1990
21931571438631438 ~1988
21931631438632638 ~1988
21931979438639598 ~1988
21932063438641278 ~1988
21932591438651838 ~1988
219327971315967839 ~1989
21932819438656398 ~1988
21933491438669838 ~1988
21933539438670798 ~1988
21933911438678238 ~1988
219343571316061439 ~1989
219345471754763779 ~1990
21934823438696478 ~1988
21935183438703678 ~1988
1501
GIMPS The Prime Pages FactorDb.com
Home
4.903.097 digits 		e-mail
25-07-08