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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
153957714002900479
153958014618740319 ~1990
15396011307920238 ~1987
153962571231700579 ~1989
15396263307925278 ~1987
15396779307935598 ~1987
153968932155565039 ~1989
15397103307942078 ~1987
15397199307943998 ~1987
15397331307946638 ~1987
15397451307949038 ~1987
15397477923848638 ~1988
15397517923851038 ~1988
15397691307953838 ~1987
15397859307957198 ~1987
153980272771644879 ~1989
15399539307990798 ~1987
153995991231967939 ~1989
15399959307999198 ~1987
15400571308011438 ~1987
15400739308014798 ~1987
15401003308020078 ~1987
154010038624561699
15401161924069678 ~1988
15401663308033278 ~1987
Exponent Prime Factor Digits Year
15402083308041678 ~1987
15402143308042878 ~1987
154021991540219919 ~1989
15402371308047438 ~1987
15402791308055838 ~1987
15403403308068078 ~1987
15403439308068798 ~1987
15403517924211038 ~1988
15404111308082238 ~1987
15404591308091838 ~1987
15405011308100238 ~1987
15405251308105038 ~1987
154053173697276099 ~1990
15405623308112478 ~1987
154059591232476739 ~1989
15406031308120638 ~1987
15406147147899011310 ~1991
154067471540674719 ~1989
15406871308137438 ~1987
154070871232566979 ~1989
15407257924435438 ~1988
15407261924435678 ~1988
154080591232644739 ~1989
15408083308161678 ~1987
15408181924490878 ~1988
Exponent Prime Factor Digits Year
15408479308169598 ~1987
15409451308189038 ~1987
15409763308195278 ~1987
154099972157399599 ~1989
15410051308201038 ~1987
15410123308202478 ~1987
15410231308204638 ~1987
154103634006694399 ~1990
154105572465689139 ~1989
15410587471563962310 ~1992
15410933924655998 ~1988
15411611308232238 ~1987
15411719308234398 ~1987
15411839308236798 ~1987
15412283308245678 ~1987
154122918939128799 ~1991
15413113924786798 ~1988
154132631541326319 ~1989
154135071233080579 ~1989
15413771308275438 ~1987
15413939308278798 ~1987
154142991233143939 ~1989
15414323308286478 ~1987
15415019308300398 ~1987
15415079308301598 ~1987
Exponent Prime Factor Digits Year
15415223308304478 ~1987
15415703308314078 ~1987
154158612466537779 ~1989
154158791541587919 ~1989
15416111308322238 ~1987
154162434008223199 ~1990
15416311135663536910 ~1991
15416711308334238 ~1987
154167172158340399 ~1989
15416953925017198 ~1988
15417491308349838 ~1987
154179771233438179 ~1989
15418079308361598 ~1987
15418261925095678 ~1988
154185673700456099 ~1990
154188171233505379 ~1989
15419363308387278 ~1987
15419557925173438 ~1988
15419699308393998 ~1987
15419819308396398 ~1987
15420539308410798 ~1987
154206411233651299 ~1989
15420803308416078 ~1987
15421319308426398 ~1987
15421583308431678 ~1987
1294
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25-10-20