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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
2412341192987298 ~1982
241247948249597 ~1981
2412491434248398 ~1983
2412541144752478 ~1982
2412547820265998 ~1984
2412653144759198 ~1982
2412667386026738 ~1983
241267148253437 ~1981
241277948255597 ~1981
24128111399430399 ~1984
2412833144769998 ~1982
2412877144772638 ~1982
2413051241305118 ~1983
2413123241312318 ~1983
241322348264477 ~1981
2413261144795678 ~1982
2413421193073698 ~1982
241345148269037 ~1981
2413637144818238 ~1982
241367948273597 ~1981
2413693144821598 ~1982
2413751193100098 ~1982
2413883579331938 ~1983
2413913579339138 ~1983
2413973144838398 ~1982
Exp. Prime Factor Digits Year
2413981531075838 ~1983
2414101386256178 ~1983
2414219193137538 ~1982
2414281144856878 ~1982
2414389579453378 ~1983
2414393144863598 ~1982
241459148291837 ~1981
2414591193167298
2414717144883038 ~1982
241477148295437 ~1981
2414779821024878 ~1984
2414827386372338 ~1983
2414933579583938 ~1983
24149471593865039 ~1985
2414989531297598 ~1983
241499948299997 ~1981
241519148303837 ~1981
241535948307197 ~1981
2415503628030798 ~1984
2415521193241698 ~1982
2415557193244578 ~1982
241577948315597 ~1981
2415839434851038 ~1983
2416009531521998 ~1983
241610348322077 ~1981
Exp. Prime Factor Digits Year
2416241193299298 ~1982
241628348325677 ~1981
2416649579995778 ~1983
2416859193348738 ~1982
2416859435034638
241687148337437 ~1981
24172511160280499 ~1984
2417279435110238 ~1983
241742348348477 ~1981
2417743241774318 ~1983
2417837338497198 ~1983
24178972659686719 ~1985
241790348358077 ~1981
241795148359037 ~1981
2418037580328898 ~1983
2418257145095438 ~1982
2418329338566078 ~1983
24184631015754479 ~1984
2418673145120398 ~1982
2418673386987698
2418679435362238 ~1983
24187995805117619 ~1986
24188391789940879 ~1985
2419159241915918 ~1983
24193314258022579 ~1986
Exp. Prime Factor Digits Year
241946348389277 ~1981
241952348390477 ~1981
2419801145188078 ~1982
241988348397677 ~1981
2420009193600738 ~1982
242005148401037 ~1981
242006348401277 ~1981
242027948405597 ~1981
242033948406797 ~1981
2420371387259378 ~1983
242047148409437 ~1981
2420549338876878 ~1983
2420557145233438 ~1982
242069948413997 ~1981
24208631016762479 ~1984
2420941145256478 ~1982
2420969338935678 ~1983
2420993581038338 ~1983
2421073145264398 ~1982
2421137581072898 ~1983
242120348424077 ~1981
2421253145275198 ~1982
2421281193702498 ~1982
242138348427677 ~1981
242149148429837 ~1981
435
GIMPS The Prime Pages FactorDb.com
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25-06-29