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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.
Exponent Prime Factor Digits Year
15607499312149998 ~1987
15608231312164638 ~1987
156087771248702179 ~1989
15608891312177838 ~1987
156089112809603999 ~1989
15609059312181198 ~1987
15609299312185998 ~1987
15609701936582078 ~1988
15610079312201598 ~1987
156102532185435439 ~1989
156103671248829379 ~1989
15610691312213838 ~1987
156111378430013999 ~1991
15611161936669678 ~1988
15611339312226798 ~1987
15611591312231838 ~1987
15611819312236398 ~1987
156122871248982979 ~1989
15612481936748878 ~1988
15612743312254878 ~1987
15612959312259198 ~1987
15612983312259678 ~1987
15613151312263038 ~1987
1561315122710889444712
15613931312278638 ~1987
Exponent Prime Factor Digits Year
15614003312280078 ~1987
15614099312281998 ~1987
15614411312288238 ~1987
156145671249165379 ~1989
15614657936879438 ~1988
15615791312315838 ~1987
15615863312317278 ~1987
15615959312319198 ~1987
15616373936982398 ~1988
15616501936990078 ~1988
15616631312332638 ~1987
15616943312338878 ~1987
15616961937017678 ~1988
15617999312359998 ~1987
15618059312361198 ~1987
15618371312367438 ~1987
156187212498995379 ~1989
15618923312378478 ~1987
15619091312381838 ~1987
15620219312404398 ~1987
15620411312408238 ~1987
15620471312409438 ~1987
156207471249659779 ~1989
15620939312418798 ~1987
15621497937289838 ~1988
Exponent Prime Factor Digits Year
156214972187009599
156215273749166499 ~1990
15622091312441838 ~1987
15622499312449998 ~1987
15622751312455038 ~1987
15623189112486960910 ~1991
15623243312464878 ~1987
15623483312469678 ~1987
15623651312473038 ~1987
156236774687103119 ~1990
156236872812263679 ~1989
15623981937438878 ~1988
156241433749794339 ~1990
15624491312489838 ~1987
156245091249960739 ~1989
15624551312491038 ~1987
15624743312494878 ~1987
15624971312499438 ~1987
15625019312500398 ~1987
15625871312517438 ~1987
15625919312518398 ~1987
15626003312520078 ~1987
15626291312525838 ~1987
15626333937579998 ~1988
15626423312528478 ~1987
Exponent Prime Factor Digits Year
156265791250126339 ~1989
15626581937594878 ~1988
15626843312536878 ~1987
156269995000639699 ~1990
156271371250170979 ~1989
15627719312554398 ~1987
156277372187883199 ~1989
15628043312560878 ~1987
15628331312566638 ~1987
15628391312567838 ~1987
156287572188025999 ~1989
15628919312578398 ~1987
15629459312589198 ~1987
15630299312605998 ~1987
15630301121916347910 ~1991
15631079312621598 ~1987
15631103312622078 ~1987
15631481937888878 ~1988
15631943312638878 ~1987
15632063312641278 ~1987
15632399312647998 ~1987
156327911563279119 ~1989
15633377938002638 ~1988
15633701938022078 ~1988
15633791312675838 ~1987
1256
GIMPS The Prime Pages FactorDb.com
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25-04-13