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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
246142811476856879 ~1990
24614399492287998 ~1989
24614423492288478 ~1989
246145011969160099 ~1990
24614587142764604710 ~1992
24614951492299038 ~1989
24615179492303598 ~1989
24615511216616496910 ~1993
246160931476965599 ~1990
24616199492323998 ~1989
24616703492334078 ~1989
24616859492337198 ~1989
246168591969348739
24617231492344638 ~1989
24617459492349198 ~1989
24617471492349438 ~1989
24617531492350638 ~1989
24617591492351838 ~1989
24617699492353998 ~1989
24618719492374398 ~1989
24618911492378238 ~1989
246190331477141999 ~1990
246191571477149439 ~1990
246192377385771119 ~1992
24619571492391438 ~1989
Exponent Prime Factor Digits Year
24619631492392638 ~1989
24619643492392878 ~1989
24619979492399598 ~1989
24619993132947962310 ~1992
246200394431607039 ~1991
24620243492404878 ~1989
246205811477234879 ~1990
246206571969652579 ~1990
246207114431727999 ~1991
24621119492422398 ~1989
246213411477280479 ~1990
24621731492434638 ~1989
24621743492434878 ~1989
24621923492438478 ~1989
24622583492451678 ~1989
24622751492455038 ~1989
246229371969834979 ~1990
246230171477381039 ~1990
246231133939698099 ~1991
24623279492465598 ~1989
24623303492466078 ~1989
24623603492472078 ~1989
24623843492476878 ~1989
246243711969949699 ~1990
246246319849852419 ~1992
Exponent Prime Factor Digits Year
246254171477525039 ~1990
24625619492512398 ~1989
24625631492512638 ~1989
246257592462575919 ~1990
24625823492516478 ~1989
246260991970087939 ~1990
246268911970151299 ~1990
246269571477617439 ~1990
24627023492540478 ~1989
24627419492548398 ~1989
24627719492554398 ~1989
24628619492572398 ~1989
246288411477730479 ~1990
24628991492579838 ~1989
24629399492587998 ~1989
246298611477791679 ~1990
24630311492606238 ~1989
24630899492617998 ~1989
24631151492623038 ~1989
24631319492626398 ~1989
246317571970540579 ~1990
24631979492639598 ~1989
24632033197056264110 ~1993
246328211477969279 ~1990
246329211477975279 ~1990
Exponent Prime Factor Digits Year
246344712463447119 ~1990
24635183492703678 ~1989
246354591970836739 ~1990
24635939492718798 ~1989
24636263492725278 ~1989
24636719492734398 ~1989
246368531478211199 ~1990
24637391492747838 ~1989
24637583492751678 ~1989
24637883492757678 ~1989
24638051492761038 ~1989
24638123492762478 ~1989
24638279492765598 ~1989
246383511971068099 ~1990
246385632463856319 ~1990
24638891492777838 ~1989
24639119492782398 ~1989
246398411478390479 ~1990
246399591971196739 ~1990
24640151492803038 ~1989
24640823492816478 ~1989
24641003492820078 ~1989
24641663492833278 ~1989
24642251492845038 ~1989
24642263492845278 ~1989
1587
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25-07-08