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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
402278380455677 ~1983
402283180456637 ~1983
402289180457837 ~1983
4023401321872098 ~1984
4023599965663778 ~1985
40236191368030479 ~1986
402367180473437 ~1983
4023671321893698
4023731321898498 ~1984
40239731207191919 ~1985
4024037241442238 ~1984
4024039402403918 ~1984
4024289563400478 ~1985
4024369965848578 ~1985
40244118129310239 ~1987
402451180490237 ~1983
402473980494797 ~1983
402505180501037 ~1983
40252794186290179 ~1987
4025429563560078 ~1985
40257792898560899 ~1986
402578380515677 ~1983
4025797241547838 ~1984
4025941241556478 ~1984
4026017563642398 ~1985
Exp. Prime Factor Digits Year
402608380521677 ~1983
402613180522637 ~1983
4026137241568238 ~1984
4026313241578798 ~1984
4026667644266738 ~1985
402671980534397 ~1983
4026823402682318 ~1984
4027097241625838 ~1984
4027213644354098 ~1985
4027217241633038 ~1984
4027237241634238 ~1984
4027279966546978 ~1985
4027381108739287110 ~1988
4027393241643598 ~1984
402745180549037 ~1983
402755980551197 ~1983
4027579402757918 ~1984
402770380554077 ~1983
4027763132916179110 ~1988
402782380556477 ~1983
4027889563904478 ~1985
40280931208427919 ~1985
4028177563944798 ~1985
4028221644515378 ~1985
4028231322258498 ~1984
Exp. Prime Factor Digits Year
4028251402825118 ~1984
4028287725091678 ~1985
4028389886245598 ~1985
4028429563980078 ~1985
402847180569437 ~1983
402896380579277 ~1983
4029001141820835310 ~1988
4029049966971778 ~1985
4029253886435678 ~1985
4029517241771038 ~1984
4029587322366978 ~1984
4030133241807998 ~1984
4030363403036318 ~1984
4030387403038718 ~1984
4030393241823598 ~1984
4030421241825278 ~1984
4030421322433698
403057180611437 ~1983
4030577564280798 ~1985
4030613131397983910 ~1988
40306331209189919 ~1985
4030657644905138 ~1985
4030783403078318 ~1984
403091980618397 ~1983
40309191289894099
Exp. Prime Factor Digits Year
40309812821686719 ~1986
4031129322490338 ~1984
40312193950594639 ~1987
403123180624637 ~1983
403139980627997 ~1983
4031453241887198 ~1984
4031719403171918 ~1984
40318272090099116911 ~1991
4031837322546978 ~1984
4031893241913598 ~1984
4031897241913838 ~1984
4031977967674498 ~1985
4032101241926078 ~1984
4032151403215118 ~1984
4032307725815278 ~1985
4032437241946238 ~1984
4032533564554638 ~1985
4032727645236338 ~1985
4032811403281118 ~1984
403283980656797 ~1983
403286380657277 ~1983
4032967725934078 ~1985
403301980660397 ~1983
4033079322646338 ~1984
4033087645293938 ~1985
609
GIMPS The Prime Pages FactorDb.com
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25-10-26