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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
20501543410030878 ~1988
20501699410033998 ~1988
20502071410041438 ~1988
205030731230184399 ~1989
205031931230191599 ~1989
205032711640261699 ~1990
20503523410070478 ~1988
20505599410111998 ~1988
20505623410112478 ~1988
205059171230355039 ~1989
20505923410118478 ~1988
20506043410120878 ~1988
205060931230365599 ~1989
20506151410123038 ~1988
20506331410126638 ~1988
205063491640507939 ~1990
20506631410132638 ~1988
20506943410138878 ~1988
20507699410153998 ~1988
20507891410157838 ~1988
20508041324027047910 ~1993
20508431410168638 ~1988
20508503410170078 ~1988
205085178203406819 ~1991
20509271410185438 ~1988
Exponent Prime Factor Digits Year
20509763410195278 ~1988
20510159410203198 ~1988
20510459410209198 ~1988
20510531410210638 ~1988
20510663410213278 ~1988
205109991640879939 ~1990
205112511640900099 ~1990
20511923410238478 ~1988
205122432051224319 ~1990
205122534922940739 ~1991
205123211230739279 ~1989
20512391410247838 ~1988
20512403410248078 ~1988
20513011229745723310 ~1992
20513039410260798 ~1988
20513231410264638 ~1988
20513771410275438 ~1988
20513819410276398 ~1988
20514251410285038 ~1988
205143711641149699 ~1990
205146171230877039 ~1989
20515619410312398 ~1988
20515679410313598 ~1988
20516123410322478 ~1988
205163516565232339 ~1991
Exponent Prime Factor Digits Year
20516843410336878 ~1988
20516939410338798 ~1988
205170371231022239 ~1989
205170591641364739 ~1990
205176771231060639 ~1989
20517719410354398 ~1988
205177992051779919 ~1990
20518259410365198 ~1988
20518391410367838 ~1988
20518523410370478 ~1988
20518669160045618310 ~1992
20519099410381998 ~1988
20519699410393998 ~1988
205197011231182079 ~1989
20519903410398078 ~1988
20519951410399038 ~1988
20519959119015762310 ~1992
20520191410403838 ~1988
205211571231269439 ~1989
20521283410425678 ~1988
205216731231300399 ~1989
205217474925219299 ~1991
20523143410462878 ~1988
20523203410464078 ~1988
20523623410472478 ~1988
Exponent Prime Factor Digits Year
205243331231459999 ~1989
205245312052453119 ~1990
20524739410494798 ~1988
20525231410504638 ~1988
205256232052562319 ~1990
20525831410516638 ~1988
20525903410518078 ~1988
20526059410521198 ~1988
205261611642092899 ~1990
20526911410538238 ~1988
205270371231622239 ~1989
205272494515994799 ~1991
20527319410546398 ~1988
20527379410547598 ~1988
20527499410549998 ~1988
20527739410554798 ~1988
205278891642231139 ~1990
205284673284554739 ~1990
205287131231722799 ~1989
205288191642305539 ~1990
20528999410579998 ~1988
20529779410595598 ~1988
20530151410603038 ~1988
205302011231812079 ~1989
20530871410617438 ~1988
1436
GIMPS The Prime Pages FactorDb.com
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25-05-04