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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
627471231254942479 ~1992
627508375020066979 ~1993
627514311255028639 ~1992
627528831255057679 ~1992
627530511255061039 ~1992
627534591255069199 ~1992
627536991255073999 ~1992
627538498785538879 ~1994
627540111255080239 ~1992
627541191255082399 ~1992
627541791255083599 ~1992
627545631255091279 ~1992
627564831255129679 ~1992
627613933765683599 ~1993
627615711255231439 ~1992
627631311255262639 ~1992
627650991255301999 ~1992
627656391255312799 ~1992
627675111255350239 ~1992
627681413766088479 ~1993
627692716276927119 ~1994
627729373766376239 ~1993
627744715021957699 ~1993
627790911255581839 ~1992
627801413766808479 ~1993
Exponent Prime Factor Digits Year
627805375022442979 ~1993
627813711255627439 ~1992
627841311255682639 ~1992
627842031255684079 ~1992
627891796278917919 ~1994
627892311255784639 ~1992
627911031255822079 ~1992
627916396279163919 ~1994
627947991255895999 ~1992
627952791255905599 ~1992
627957173767743039 ~1993
627967431255934879 ~1992
627967613767805679 ~1993
627999231255998479 ~1992
628010031256020079 ~1992
628013511256027039 ~1992
628013631256027279 ~1992
628044111256088239 ~1992
628093613768561679 ~1993
628123911256247839 ~1992
628150191256300399 ~1992
628152533768915199 ~1993
628168013769008079 ~1993
628173831256347679 ~1992
628175413769052479 ~1993
Exponent Prime Factor Digits Year
628237911256475839 ~1992
628244173769465039 ~1993
628245773769474639 ~1993
628246911256493839 ~1992
628248231256496479 ~1992
628252911256505839 ~1992
628274631256549279 ~1992
628295173769771039 ~1993
628324911256649839 ~1992
628348791256697599 ~1992
628365831256731679 ~1992
628370031256740079 ~1992
628397391256794799 ~1992
628419231256838479 ~1992
628428831256857679 ~1992
628433511256867039 ~1992
628450373770702239 ~1993
628465191256930399 ~1992
628476773770860639 ~1993
628484631256969279 ~1992
628497111256994239 ~1992
628519911257039839 ~1992
628537613771225679 ~1993
628539076285390719 ~1994
628547511257095039 ~1992
Exponent Prime Factor Digits Year
628549973771299839 ~1993
628553991257107999 ~1992
628562031257124079 ~1992
628567911257135839 ~1992
628570311257140639 ~1992
628582213771493279 ~1993
628591191257182399 ~1992
628618911257237839 ~1992
628635533771813199 ~1993
62863921854949325710 ~1996
628664573771987439 ~1993
628672013772032079 ~1993
628675311257350639 ~1992
628678791257357599 ~1992
628720813772324879 ~1993
628722973772337839 ~1993
628733875029870979 ~1993
628746111257492239 ~1992
62876501603614409710 ~1996
628766173772597039 ~1993
628773231257546479 ~1992
628775991257551999 ~1992
628784511257569039 ~1992
628787031257574079 ~1992
628788591257577199 ~1992
2215
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25-07-08