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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
4421831353746498 ~1984
4422017619082398 ~1985
4422139442213918 ~1985
4422599796067838 ~1985
442262388452477 ~1983
44226231149881999
4422809619193278 ~1985
442303188460637 ~1983
4423037265382238 ~1984
4423183707709298 ~1985
44232491061579779 ~1986
442327188465437 ~1983
442337988467597 ~1983
442340388468077 ~1983
4423493265409598 ~1984
442351188470237 ~1983
4423619353889538 ~1984
442366755123314487112 ~1995
4423673265420398 ~1984
442369188473837 ~1983
442382388476477 ~1983
4423841265430478 ~1984
442387188477437 ~1983
44238771046689298311 ~1990
44238971769558819 ~1986
Exp. Prime Factor Digits Year
44242131061811139 ~1986
442453188490637 ~1983
4424687353974978 ~1984
44248031504433039 ~1986
4424857265491438 ~1984
442493988498797 ~1983
442495188499037 ~1983
4424969619495678 ~1985
4425011354000898 ~1984
4425257265515438 ~1984
4425437354034978 ~1984
4425521354041698 ~1984
4425571796602798 ~1985
4425677265540638 ~1984
4425713619599838 ~1985
44258331327749919 ~1986
4425853265551198 ~1984
442592388518477 ~1983
44261571681939679 ~1986
4426159796708638 ~1985
4426193265571598 ~1984
442628388525677 ~1983
4426663442666318 ~1985
4426901265614078 ~1984
4427273619818238 ~1985
Exp. Prime Factor Digits Year
4427279354182338 ~1984
442751988550397 ~1983
442754388550877 ~1983
4427617265657038 ~1984
442763988552797 ~1983
442771188554237 ~1983
442772388554477 ~1983
4427911442791118 ~1985
4428001265680078 ~1984
4428043708486898 ~1985
44282891771315619 ~1986
4428317265699038 ~1984
4428331442833118 ~1985
4428337130193107910 ~1988
442838388567677 ~1983
4428421265705278 ~1984
4428491354279298 ~1984
44288991860137599 ~1986
4429277620098798 ~1985
442939188587837 ~1983
4429493265769598 ~1984
4429561265773678 ~1984
442973988594797 ~1983
4429769354381538 ~1984
4429787354382978 ~1984
Exp. Prime Factor Digits Year
442987188597437 ~1983
4430113265806798 ~1984
44301131329033919
4430143443014318 ~1985
443017188603437 ~1983
4430171354413698
4430221265813278 ~1984
443035188607037 ~1983
4430479443047918 ~1985
443071188614237 ~1983
4430729620302078 ~1985
4430837620317198 ~1985
443096388619277 ~1983
44312572127003379 ~1986
4431487709037938 ~1985
443149188629837 ~1983
443165988633197 ~1983
443167188633437 ~1983
443185188637037 ~1983
4431961265917678 ~1984
4432457354596578 ~1984
4432559354604738 ~1984
44326694166708879 ~1987
4432829620596078 ~1985
4432949101957827110 ~1988
657
GIMPS The Prime Pages FactorDb.com
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26-04-05