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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
252370331514221999 ~1990
252376211514257279 ~1990
25237631504752638 ~1989
25237763504755278 ~1989
252378892019031139 ~1990
252382371514294239 ~1990
25239479504789598 ~1989
25239563504791278 ~1989
252397371514384239 ~1990
252399712019197699 ~1990
25240703504814078 ~1989
252407571514445439 ~1990
25241483504829678 ~1989
25241521116110996710 ~1992
25241543504830878 ~1989
25241831504836638 ~1989
25242083504841678 ~1989
25242131504842638 ~1989
25242359504847198 ~1989
25243271504865438 ~1989
25243391504867838 ~1989
25243643504872878 ~1989
25244003504880078 ~1989
25244111504882238 ~1989
25244651126223255110 ~1992
Exponent Prime Factor Digits Year
252453074544155279 ~1991
25245431504908638 ~1989
25245491504909838 ~1989
252456371514738239 ~1990
25245659504913198 ~1989
25246271504925438 ~1989
252465771514794639 ~1990
25246811504936238 ~1989
25246883504937678 ~1989
252469331514815999 ~1990
25247003504940078 ~1989
25247231504944638 ~1989
25247591504951838 ~1989
252477011514862079 ~1990
25248059504961198 ~1989
252490731514944399 ~1990
252491171514947039 ~1990
25249859504997198 ~1989
25249979504999598 ~1989
25250063505001278 ~1989
252502372020018979 ~1990
25250579505011598 ~1989
25253411505068238 ~1989
25253843505076878 ~1989
25254143505082878 ~1989
Exponent Prime Factor Digits Year
252545211515271279 ~1990
25254959505099198 ~1989
25254959121223803310
25255271505105438 ~1989
252553971515323839 ~1990
252556512525565119 ~1990
25256039505120798 ~1989
25256711505134238 ~1989
25256879505137598 ~1989
25257623505152478 ~1989
25257803505156078 ~1989
252579131515474799 ~1990
25257923505158478 ~1989
25258451505169038 ~1989
25259291505185838 ~1989
25259519505190398 ~1989
25260023505200478 ~1989
252602817578084319 ~1992
25260311505206238 ~1989
25260611505212238 ~1989
25261283505225678 ~1989
252613611515681679 ~1990
252615472020923779 ~1990
25261679505233598 ~1989
25262999505259998 ~1989
Exponent Prime Factor Digits Year
252630131515780799 ~1990
25263431505268638 ~1989
25263443505268878 ~1989
25263779505275598 ~1989
25263971505279438 ~1989
252640211515841279 ~1990
25264859505297198 ~1989
25265171505303438 ~1989
25265291505305838 ~1989
25265711505314238 ~1989
25266359505327198 ~1989
25267043505340878 ~1989
252675771516054639 ~1990
25268291505365838 ~1989
252683571516101439 ~1990
252687171516123039 ~1990
25268819505376398 ~1989
25269551505391038 ~1989
25269983505399678 ~1989
252699971516199839 ~1990
25270139505402798 ~1989
25270499505409998 ~1989
25271423505428478 ~1989
25271531505430638 ~1989
252715316570598079
1588
GIMPS The Prime Pages FactorDb.com
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25-05-04