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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
21999671439993438 ~1988
21999779439995598 ~1988
21999839439996798 ~1988
22000103440002078 ~1988
220003611760028899 ~1990
22000619440012398 ~1988
22000859440017198 ~1988
22001783440035678 ~1988
220022931320137599 ~1990
22002371440047438 ~1988
220023771320142639 ~1990
22002443440048878 ~1988
22004051440081038 ~1988
22004231440084638 ~1988
22004303145228399910 ~1992
22004459440089198 ~1988
22004903440098078 ~1988
220052411320314479 ~1990
22005311440106238 ~1988
220062411320374479 ~1990
22006511440130238 ~1988
22007123440142478 ~1988
220074376602231119 ~1991
22007603440152078 ~1988
22007963440159278 ~1988
Exponent Prime Factor Digits Year
22008179440163598 ~1988
220082691760661539 ~1990
22008383440167678 ~1988
22008443440168878 ~1988
220086611320519679 ~1990
220088171320529039 ~1990
220096135282307139 ~1991
22010519440210398 ~1988
220106413521702579 ~1991
220109211760873699 ~1990
22010951440219038 ~1988
22011211105653812910 ~1992
22011371440227438 ~1988
220116731320700399 ~1990
220117491760939939 ~1990
22012031440240638 ~1988
22012751440255038 ~1988
220131494842892799 ~1991
22013423440268478 ~1988
22013819440276398 ~1988
22014623440292478 ~1988
22014871105671380910 ~1992
220151271761210179 ~1990
220153976604619119 ~1991
22016363440327278 ~1988
Exponent Prime Factor Digits Year
22016399440327998 ~1988
220166473522663539 ~1991
22016723440334478 ~1988
22016999440339998 ~1988
22017251440345038 ~1988
22017731440354638 ~1988
22017791440355838 ~1988
22017851440357038 ~1988
22018211440364238 ~1988
22018259440365198 ~1988
22018523440370478 ~1988
22018883440377678 ~1988
22019219440384398 ~1988
220193571761548579 ~1990
22019639440392798 ~1988
22019759440395198 ~1988
220198611761588899 ~1990
22020191440403838 ~1988
22020203440404078 ~1988
22020611440412238 ~1988
220208771321252639 ~1990
220211511761692099 ~1990
22021211440424238 ~1988
220215912202159119 ~1990
22021799440435998 ~1988
Exponent Prime Factor Digits Year
22022303440446078 ~1988
22022543440450878 ~1988
220231635285559139 ~1991
22023203440464078 ~1988
220240039250081279 ~1992
220241093083375279 ~1990
220244811321468879 ~1990
22024763440495278 ~1988
22024883440497678 ~1988
22025039440500798 ~1988
22025831440516638 ~1988
22025879440517598 ~1988
220268176608045119 ~1991
220273811321642879 ~1990
22028351440567038 ~1988
220286211321717279 ~1990
220286593965158639 ~1991
22028843440576878 ~1988
220289211321735279 ~1990
22030031440600638 ~1988
220302471762419779 ~1990
22030583440611678 ~1988
22030751440615038 ~1988
22031123440622478 ~1988
220311591762492739 ~1990
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25-10-20