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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
24287423485748478 ~1989
24287843485756878 ~1989
24288311485766238 ~1989
242886735343508079 ~1991
24288791485775838 ~1989
24288923485778478 ~1989
242899274372186879 ~1991
24290663485813278 ~1989
24290699485813998 ~1989
24291959485839198 ~1989
24292043485840878 ~1989
242922074372597279 ~1991
24292211485844238 ~1989
242923971943391779 ~1990
24292451485849038 ~1989
24292511485850238 ~1989
242925735344366079 ~1991
242925912429259119 ~1990
24292799485855998 ~1989
242932611457595679 ~1990
24293471485869438 ~1989
242940411943523299 ~1990
24294251485885038 ~1989
24295223485904478 ~1989
24295763485915278 ~1989
Exponent Prime Factor Digits Year
24295871485917438 ~1989
24295919485918398 ~1989
24296159485923198 ~1989
24296903485938078 ~1989
242969331457815999 ~1990
24297023485940478 ~1989
24297083485941678 ~1989
24297359485947198 ~1989
242978991943831939 ~1990
24298181136069813710 ~1992
242982131457892799 ~1990
242982893401760479 ~1991
24298979485979598 ~1989
24299543485990878 ~1989
24300179486003598 ~1989
24300371486007438 ~1989
24300863486017278 ~1989
24300959486019198 ~1989
24301103486022078 ~1989
243020211944161699 ~1990
24302051486041038 ~1989
24302711486054238 ~1989
24302891486057838 ~1989
24302903486058078 ~1989
24303263486065278 ~1989
Exponent Prime Factor Digits Year
24303563486071278 ~1989
243036675832880099 ~1991
24303683486073678 ~1989
243038895346855599 ~1991
243041875833004899 ~1991
24305051486101038 ~1989
24305159486103198 ~1989
24305279486105598 ~1989
243053211458319279 ~1990
24305483486109678 ~1989
24305591486111838 ~1989
24305819486116398 ~1989
24306179486123598 ~1989
24306203486124078 ~1989
243080771458484639 ~1990
24308183486163678 ~1989
24308243486164878 ~1989
243082674375488079 ~1991
24308363486167278 ~1989
24308939486178798 ~1989
24309503486190078 ~1989
243102678265490799 ~1992
24310589116690827310 ~1992
24311219486224398 ~1989
24311291486225838 ~1989
Exponent Prime Factor Digits Year
24311879486237598 ~1989
24312059486241198 ~1989
243124131458744799 ~1990
24312503486250078 ~1989
24312551486251038 ~1989
243126975835047299 ~1991
243130875835140899 ~1991
243131171458787039 ~1990
243136371458818239 ~1990
243137771458826639 ~1990
243138971458833839 ~1990
24313979486279598 ~1989
24314039486280798 ~1989
24314123486282478 ~1989
24314351486287038 ~1989
24314483486289678 ~1989
24314579486291598 ~1989
243146691945173539 ~1990
24315743486314878 ~1989
243160911945287299 ~1990
24319343486386878 ~1989
24319499486389998 ~1989
24319643486392878 ~1989
24320459486409198 ~1989
243205611459233679 ~1990
1559
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25-05-04