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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
25912319518246398 ~1989
25913171518263438 ~1989
259137734146203699 ~1991
25913963518279278 ~1989
25913999518279998 ~1989
259143731554862399 ~1990
25915391518307838 ~1989
25915559518311198 ~1989
259163931554983599 ~1990
25916519518330398 ~1989
25916771518335438 ~1989
25917011518340238 ~1989
25917179518343598 ~1989
25917383518347678 ~1989
25918283518365678 ~1989
25918811518376238 ~1989
25919111518382238 ~1989
25919123518382478 ~1989
25919291518385838 ~1989
259195192073561539 ~1990
25919639518392798 ~1989
25919711518394238 ~1989
259197172073577379 ~1990
25919879518397598 ~1989
25920203518404078 ~1989
Exponent Prime Factor Digits Year
259210971555265839 ~1990
25921151518423038 ~1989
259211512073692099
25922423518448478 ~1989
25922471518449438 ~1989
25922843518456878 ~1989
25923263518465278 ~1989
259237011555422079 ~1990
25923899518477998 ~1989
25924163518483278 ~1989
25924523518490478 ~1989
259247474666454479 ~1991
25924763518495278 ~1989
25924823518496478 ~1989
25925171518503438 ~1989
25925303518506078 ~1989
25926371518527438 ~1989
25926503518530078 ~1989
25926779518535598 ~1989
25927403518548078 ~1989
25927619518552398 ~1989
25927763518555278 ~1989
25927883518557678 ~1989
25927931518558638 ~1989
25928351518567038 ~1989
Exponent Prime Factor Digits Year
259291337778739919 ~1992
25929443518588878 ~1989
25929719518594398 ~1989
25930319518606398 ~1989
259306131555836799 ~1990
25930643518612878 ~1989
25930979518619598 ~1989
25931063518621278 ~1989
25931303518626078 ~1989
25931459518629198 ~1989
259321331555927999 ~1990
25932611518652238 ~1989
25933139518662798 ~1989
25933703518674078 ~1989
25934399518687998 ~1989
25934663518693278 ~1989
259352571556115439 ~1990
259353412074827299 ~1990
25935683518713678 ~1989
25935971518719438 ~1989
259362412074899299 ~1990
25936259518725198 ~1989
25936499518729998 ~1989
259366012074928099 ~1990
25936811518736238 ~1989
Exponent Prime Factor Digits Year
25937039518740798 ~1989
25937231108936370310 ~1992
259378371556270239 ~1990
25938299518765998 ~1989
25938611518772238 ~1989
25938959518779198 ~1989
259397512075180099 ~1990
25939799518795998 ~1989
25940231518804638 ~1989
25940303518806078 ~1989
25941011518820238 ~1989
25941059518821198 ~1989
259417373631843199 ~1991
25942139518842798 ~1989
25942991518859838 ~1989
25943153145281656910 ~1992
259432192075457539 ~1990
25943699518873998 ~1989
25943843518876878 ~1989
25943903518878078 ~1989
25944203518884078 ~1989
25944251518885038 ~1989
25944683518893678 ~1989
25945823518916478 ~1989
25946183518923678 ~1989
1602
GIMPS The Prime Pages FactorDb.com
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25-04-13