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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
72189292743193039 ~1988
7219139144382798 ~1985
7219391144387838 ~1985
7219483721948318 ~1986
7219703144394078 ~1985
7219871577589698 ~1986
7220407722040718 ~1986
7220483144409678 ~1985
7220711144414238 ~1985
7220933433255998 ~1986
7221013433260798 ~1986
7221299144425998 ~1985
7221301433278078 ~1986
7221587577726978 ~1986
7221757433305438 ~1986
7221871722187118 ~1986
7221917433315038 ~1986
7222199577775938 ~1986
72221991733327779
7222661148786816710 ~1989
72228112311299539 ~1987
7222991144459838 ~1985
7223033433381998 ~1986
7223039144460798 ~1985
7223053433383198 ~1986
Exp. Prime Factor Digits Year
7223123144462478 ~1985
7223519144470398 ~1985
7223981577918498 ~1986
72239991733759779 ~1987
7224029577922338 ~1986
72241313612065519 ~1988
7224211722421118 ~1986
7224341433460478 ~1986
7224359144487198 ~1985
7224517433471038 ~1986
7224551144491038 ~1985
7225019144500398 ~1985
7225271144505438 ~1985
72254411156070579 ~1987
72255311156084979 ~1987
7225811144516238 ~1985
7225931144518638 ~1985
7226111144522238 ~1985
7226183144523678 ~1985
7226333433579998 ~1986
7226369578109538 ~1986
7226641433598478 ~1986
7226909195126543110 ~1990
7227013433620798 ~1986
72280931590180479 ~1987
Exp. Prime Factor Digits Year
7228211144564238 ~1985
7228631144572638 ~1985
7228691144573838 ~1985
7228703144574078 ~1985
7228811578304898 ~1986
7228913433734798 ~1986
7228943144578878 ~1985
7228979144579598 ~1985
7228981433738878 ~1986
7229011722901118 ~1986
7229219144584398 ~1985
7229581433774878 ~1986
7229857433791438 ~1986
7229951144599038 ~1985
7230071144601438 ~1985
7230131144602638 ~1985
7230277779423860710 ~1991
7230479578438338 ~1986
7230481433828878 ~1986
7230563144611278 ~1985
72306112313795539 ~1988
7230653433839198 ~1986
7230851144617038 ~1985
7230851578468098
7230857433851438 ~1986
Exp. Prime Factor Digits Year
7230857578468578
7230911144618238 ~1985
7230911578472898
7230943723094318 ~1986
7231319144626398 ~1985
7231403144628078 ~1985
7231747723174718 ~1986
7231781433906878 ~1986
7231793433907598 ~1986
72318711880286479 ~1987
7232111144642238 ~1985
7232549578603938 ~1986
7232627578610178 ~1986
72329172893166819 ~1988
7233071144661438 ~1985
7233263144665278 ~1985
7233593434015598 ~1986
72336373472145779 ~1988
72337271157396339 ~1987
7233899578711938 ~1986
7234091144681838 ~1985
7234091578727298
72343211591550639 ~1987
7234361578748898 ~1986
7234433434065998 ~1986
857
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25-08-20