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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
4228739761173038
4228787761181678 ~1985
4228793592031038 ~1985
422900384580077 ~1983
4229167422916718 ~1984
422933984586797 ~1983
4229383422938318 ~1984
422941184588237 ~1983
4229747338379778 ~1984
422978384595677 ~1983
422989184597837 ~1983
423007184601437 ~1983
423011984602397 ~1983
4230197253811838 ~1984
423031184606237 ~1983
4230311338424898
4230389338431138 ~1984
423062384612477 ~1983
4230719338457538 ~1984
423073184614637 ~1983
4230757253845438 ~1984
4230797253847838 ~1984
4230857592319998 ~1985
42309291015422979 ~1985
42309591015430179 ~1985
Exp. Prime Factor Digits Year
42310273723303779 ~1987
42310631015455139 ~1985
4231111423111118 ~1984
423121184624237 ~1983
4231393253883598 ~1984
4231637592429198 ~1985
4231769338541538 ~1984
4231783423178318 ~1984
4231901253914078 ~1984
423194384638877 ~1983
42323577110359779 ~1987
423260384652077 ~1983
4232651338612098 ~1984
4232693592577038 ~1985
4233007761941278 ~1985
4233071338645698 ~1984
4233139423313918 ~1984
4233161266689143110 ~1989
4233421254005278 ~1984
4233521254011278 ~1984
4233553254013198 ~1984
42336671439446799 ~1986
4233877254032638 ~1984
4234063677450098 ~1985
423409184681837 ~1983
Exp. Prime Factor Digits Year
4234157254049438 ~1984
4234211338736898 ~1984
42342912794632079 ~1986
4234537254072238 ~1984
4234679338774338 ~1984
423482384696477 ~1983
4234907338792578 ~1984
4234933254095998 ~1984
4235471338837698 ~1984
4235633254137998 ~1984
4235741254144478 ~1984
4235897338871778 ~1984
4236101254166078 ~1984
4236137254168238 ~1984
423619184723837 ~1983
423620384724077 ~1983
423637184727437 ~1983
4236437254186238 ~1984
423677984735597 ~1983
423680384736077 ~1983
4236887338950978 ~1984
4236997254219838 ~1984
4237417677986738 ~1985
4237423423742318 ~1984
423746384749277 ~1983
Exp. Prime Factor Digits Year
4237501254250078 ~1984
423755984751197 ~1983
423761984752397 ~1983
423763184752637 ~1983
4238033254281998 ~1984
4238107423810718 ~1984
4238177593344798 ~1985
423830384766077 ~1983
4238519339081538 ~1984
423857984771597 ~1983
423865184773037 ~1983
4238791678206578 ~1985
42389891017357379 ~1985
423899984779997 ~1983
4239271678283378 ~1985
4239373254362398 ~1984
4239419763095438 ~1985
4239493254369598 ~1984
42395772034996979 ~1986
4239611339168898 ~1984
4239727678356338 ~1985
4239821254389278 ~1984
42398534748635379 ~1987
4239877254392638 ~1984
423997184799437 ~1983
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25-06-01