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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.
Exp. Prime Factor Digits Year
2881031749068078 ~1984
28811171325313839 ~1985
288137957627597 ~1981
2881513461042098 ~1984
2881547691571298 ~1984
2881861172911678 ~1983
2881937172916238 ~1983
2881937403471198
2881943922221778 ~1984
288230357646077 ~1981
28823512305880819 ~1985
2882489230599138 ~1983
2882501172950078 ~1983
288254357650877 ~1981
2882603922432978 ~1984
2882717691852098 ~1984
2882771518898798 ~1984
2882777864833118 ~1984
2882857691885698 ~1984
2882897172973838 ~1983
2883007288300718 ~1983
288301157660237 ~1981
288305957661197 ~1981
288307157661437 ~1981
288314357662877 ~1981
Exp. Prime Factor Digits Year
2883187288318718 ~1983
288337157667437 ~1981
28835932941264879 ~1986
2883773173026398 ~1983
28839835537247379 ~1986
2884073173044398 ~1983
28841171153646819 ~1985
288416357683277 ~1981
2884267461482738 ~1984
2884289113064128910 ~1987
2884319692236578 ~1984
2884547230763778 ~1983
288457157691437 ~1981
288469157693837 ~1981
2884733173083998 ~1983
2884733403862638
2884753461560498 ~1984
2884933461589298 ~1984
2885021173101278 ~1983
2885209634745998 ~1984
288521957704397 ~1981
288524357704877 ~1981
288527957705597 ~1981
28853413404702399 ~1986
2885431288543118 ~1983
Exp. Prime Factor Digits Year
28854311154172419
2885497692519298 ~1984
28855911211948239 ~1985
2885599288559918 ~1983
2885713634856878 ~1984
288578357715677 ~1981
2885893173153598 ~1983
2885947288594718 ~1983
2885977173158638 ~1983
288608357721677 ~1981
2886161230892898 ~1983
2886251923600338 ~1984
288626357725277 ~1981
28862638543338499
2886419256891291110 ~1988
2886487519567678 ~1984
2886509692762178 ~1984
288656357731277 ~1981
2886571519582798 ~1984
28865711674211199
2886643692794338 ~1984
288668357733677 ~1981
288679157735837 ~1981
288683957736797 ~1981
2886839230947138
Exp. Prime Factor Digits Year
28869113522031439 ~1986
2887021173221278 ~1983
2887051288705118 ~1983
2887289692949378 ~1984
28873071385907379 ~1985
2887337173240238 ~1983
2887349923951698 ~1984
28875371386017779 ~1985
2887657173259438 ~1983
2887697404277598 ~1984
2887741173264478 ~1983
288776357755277 ~1981
28877771848177299 ~1985
2887847519812478 ~1984
2888021173281278 ~1983
2888027231042178 ~1983
288833957766797 ~1981
2888441173306478 ~1983
2888441231075298
2888443693226338 ~1984
2888507693241698 ~1984
2888531231082498 ~1983
288859157771837 ~1981
2888651519957198 ~1984
28888911213334239 ~1985
492
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25-09-07