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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
16157639323152798 ~1987
161582991292663939 ~1989
16158563323171278 ~1987
16159079323181598 ~1987
161592172262290399 ~1989
161594572262323999 ~1989
16159691323193838 ~1987
161605674201747439 ~1990
16160723323214478 ~1987
16161023323220478 ~1987
16161311323226238 ~1987
16161779323235598 ~1987
161617971292943779 ~1989
16162379323247598 ~1987
16162633969757998 ~1988
16162823323256478 ~1987
16163051323261038 ~1987
16163111323262238 ~1987
161632392909383039 ~1990
16163639323272798 ~1987
16163681969820878 ~1988
16163891323277838 ~1987
161640071616400719 ~1989
16164119323282398 ~1987
16164503129316024110 ~1991
Exponent Prime Factor Digits Year
161649711293197699 ~1989
16165139323302798 ~1987
161658432586534899 ~1989
161659491293275939 ~1989
16166123323322478 ~1987
16166291323325838 ~1987
16166459323329198 ~1987
16166471323329438 ~1987
16167037970022238 ~1988
161672591616725919 ~1989
161673431616734319 ~1989
16167433970045998 ~1988
16168199323363998 ~1987
16168393970103598 ~1988
16169053970143198 ~1988
16169113970146798 ~1988
16169183323383678 ~1987
16169317970159038 ~1988
16169633970177998 ~1988
16169963323399278 ~1987
16170131323402638 ~1987
161708111617081119 ~1989
16170971323419438 ~1987
161711591617115919 ~1989
16171193970271598 ~1988
Exponent Prime Factor Digits Year
161712293881094979 ~1990
16171271323425438 ~1987
16171279194055348110 ~1992
16171559323431198 ~1987
16171583116435397710 ~1991
16172581113208067110 ~1991
161726472911076479 ~1990
16172759323455198 ~1987
16172951323459038 ~1987
16173011323460238 ~1987
16173359323467198 ~1987
161734311293874499 ~1989
16173491323469838 ~1987
16173539323470798 ~1987
161735396792886399
16173779323475598 ~1987
16174043323480878 ~1987
161740512587848179 ~1989
16174153970449198 ~1988
16175531323510638 ~1987
16175723323514478 ~1987
16175903323518078 ~1987
16176323323526478 ~1987
16176623323532478 ~1987
16176791323535838 ~1987
Exponent Prime Factor Digits Year
16176971323539438 ~1987
16177883323557678 ~1987
16178399323567998 ~1987
16178411323568238 ~1987
161787178736507199 ~1991
161787192912169439 ~1990
161787772265028799 ~1989
16178843323576878 ~1987
16179671323593438 ~1987
16179743323594878 ~1987
16180019323600398 ~1987
16180091323601838 ~1987
16180259323605198 ~1987
16180739323614798 ~1987
16180919323618398 ~1987
16181051323621038 ~1987
16181303323626078 ~1987
161814239061596899 ~1991
16181533970891998 ~1988
16181573970894398 ~1988
16181591323631838 ~1987
16181843323636878 ~1987
16182191323643838 ~1987
161821932589150899 ~1989
16182839323656798 ~1987
1282
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25-05-04