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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
21659531433190638 ~1988
21659699433193998 ~1988
21660011433200238 ~1988
216601611299609679 ~1989
21660311433206238 ~1988
216611818231248799 ~1991
21661499433229998 ~1988
21661583433231678 ~1988
21662363433247278 ~1988
216624835632245599 ~1991
216632832166328319 ~1990
21663599433271998 ~1988
216636591733092739 ~1990
216646611733172899 ~1990
21664763433295278 ~1988
21665219433304398 ~1988
21665243433304878 ~1988
21665771433315438 ~1988
21665951433319038 ~1988
21666383433327678 ~1988
21666731433334638 ~1988
21666971433339438 ~1988
216670011300020079 ~1989
21667091433341838 ~1988
216671536500145919 ~1991
Exponent Prime Factor Digits Year
216675591733404739 ~1990
216678611300071679 ~1989
216681673900270079 ~1991
21669071433381438 ~1988
216697378234500079 ~1991
21670307108351535110 ~1992
216705011300230079 ~1989
21670739433414798 ~1988
216707771300246639 ~1989
216708131300248799 ~1989
21671063433421278 ~1988
21671483433429678 ~1988
216715011300290079 ~1989
21672011433440238 ~1988
21672191433443838 ~1988
21672347121365143310 ~1992
21672719433454398 ~1988
21673103433462078 ~1988
21673559433471198 ~1988
216743991733951939 ~1990
21674591433491838 ~1988
21675359433507198 ~1988
216755298670211619 ~1991
216759371300556239 ~1989
21676103433522078 ~1988
Exponent Prime Factor Digits Year
21676643433532878 ~1988
216769331300615999 ~1989
21676943433538878 ~1988
21677003433540078 ~1988
21677399433547998 ~1988
21678623433572478 ~1988
21678659433573198 ~1988
216787313902171599 ~1991
216787632167876319 ~1990
21678911433578238 ~1988
21679379433587598 ~1988
216793978238170879 ~1991
216794533468712499 ~1990
21679739433594798 ~1988
21679799433595998 ~1988
216807171300843039 ~1989
21680819433616398 ~1988
216811931300871599 ~1989
216815331300891999 ~1989
21681659433633198 ~1988
21681923433638478 ~1988
216823371300940239 ~1989
21683099433661998 ~1988
21683171433663438 ~1988
21684863433697278 ~1988
Exponent Prime Factor Digits Year
216850632168506319 ~1990
21685091433701838 ~1988
21685211433704238 ~1988
21685571433711438 ~1988
21686123433722478 ~1988
216861771301170639 ~1989
216864199108295999 ~1992
21686471433729438 ~1988
21687203433744078 ~1988
21687251433745038 ~1988
21687779433755598 ~1988
21687923433758478 ~1988
21687959433759198 ~1988
21688343433766878 ~1988
21688391433767838 ~1988
216883911735071299
21688559433771198 ~1988
21688571433771438 ~1988
21688703433774078 ~1988
21688883433777678 ~1988
216889694771573199 ~1991
216894611301367679 ~1989
21689903433798078 ~1988
21690059433801198 ~1988
21690083433801678 ~1988
1469
GIMPS The Prime Pages FactorDb.com
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25-04-13