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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
9172451183449038 ~1985
9172463183449278 ~1985
9172739183454798 ~1985
9173093550385598 ~1987
9173273550396398 ~1987
9173291183465838 ~1985
9173369733869538 ~1987
9173377550402638 ~1987
9173459183469198 ~1985
9173819733905538 ~1987
9174197550451838 ~1987
9174299183485998 ~1985
9174299733943938
9174383183487678 ~1985
9174449733955938 ~1987
9174521550471278 ~1987
9174563183491278 ~1985
9174601550476078 ~1987
91746471651436479 ~1988
9174719183494398 ~1985
9174839183496798 ~1985
9174887733990978 ~1987
9174983183499678 ~1985
9175337734026978 ~1987
9175457734036578 ~1987
Exp. Prime Factor Digits Year
9175619734049538 ~1987
9175871183517438 ~1985
9175913550554798 ~1987
91760032202240739 ~1988
9176017550561038 ~1987
9176023917602318 ~1987
9176099183521998 ~1985
9176099734087938
9176543183530878 ~1985
91765996607151299 ~1989
9176803917680318 ~1987
9177293550637598 ~1987
9177373550642398 ~1987
9177491183549838 ~1985
9177599183551998 ~1985
9177617734209378 ~1987
91777336607967779 ~1989
9177827734226178 ~1987
9177929734234338 ~1987
91782311321665264111 ~1992
9178451183569038 ~1985
9178751183575038 ~1985
9178751734300098
9178979183579598 ~1985
9179029102805124910 ~1990
Exp. Prime Factor Digits Year
9179111734328898 ~1987
9179153550749198 ~1987
9179693550781598 ~1987
9180071183601438 ~1985
9180191183603838 ~1985
9180299183605998 ~1985
9180383183607678 ~1985
9180659183613198 ~1985
91807671652538079 ~1988
91811292754338719 ~1988
9181261550875678 ~1987
9181391183627838 ~1985
9181619183632398 ~1985
9181631183632638 ~1985
9181657550899438 ~1987
9182171183643438 ~1985
9182171734573698
91822331469157299 ~1988
91826272203830499 ~1988
9182639183652798 ~1985
9183131183662638 ~1985
9183373551002398 ~1987
9183641551018478 ~1987
91836531285711439 ~1987
9183793551027598 ~1987
Exp. Prime Factor Digits Year
9183841551030478 ~1987
91840271653124879 ~1988
9184093551045598 ~1987
91844772540426338311 ~1993
9184537551072238 ~1987
9184841734787298 ~1987
9185153551109198 ~1987
9185171183703438 ~1985
9185339183706798 ~1985
9185399183707998 ~1985
9185723183714478 ~1985
9185741551144478 ~1987
9185881551152878 ~1987
9186053551163198 ~1987
9186263183725278 ~1985
9187103183742078 ~1985
9187163183743278 ~1985
9187313551238798 ~1987
91873331469973299 ~1988
9187457551247438 ~1987
9187781735022498 ~1987
9187933551275998 ~1987
9187993551279598 ~1987
9188021735041698 ~1987
9188303183766078 ~1985
1005
GIMPS The Prime Pages FactorDb.com
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26-01-11