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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
248152071985216579 ~1990
24815831496316638 ~1989
24816791496335838 ~1989
248168295459702399 ~1991
24817319496346398 ~1989
24817511496350238 ~1989
248178475956283299 ~1991
24818663496373278 ~1989
24818723496374478 ~1989
24819059496381198 ~1989
248190714467432799 ~1991
24819611496392238 ~1989
24820199496403998 ~1989
24820571496411438 ~1989
24821063496421278 ~1989
24821939496438798 ~1989
24822191496443838 ~1989
24822383496447678 ~1989
24822443496448878 ~1989
24822923496458478 ~1989
248229912482299119 ~1990
24823223496464478 ~1989
24823751496475038 ~1989
24824183496483678 ~1989
24824363496487278 ~1989
Exponent Prime Factor Digits Year
24824771496495438 ~1989
248256293475588079 ~1991
24825863496517278 ~1989
24826583496531678 ~1989
24826979496539598 ~1989
24827279496545598 ~1989
248275971986207779 ~1990
24827711496554238 ~1989
24828131496562638 ~1989
24828731496574638 ~1989
24828803496576078 ~1989
24828851496577038 ~1989
24829391496587838 ~1989
24829691496593838 ~1989
24830231496604638 ~1989
24830483496609678 ~1989
24830831496616638 ~1989
248310411489862479 ~1990
24831503496630078 ~1989
24831923496638478 ~1989
24832319496646398 ~1989
24832343496646878 ~1989
24832523496650478 ~1989
24832739496654798 ~1989
24832799496655998 ~1989
Exponent Prime Factor Digits Year
248327991986623939
24833411496668238 ~1989
248335973476703599 ~1991
24833603496672078 ~1989
24834101491715199910 ~1994
248341131490046799 ~1990
248352973973647539 ~1991
24835511496710238 ~1989
248358171490149039 ~1990
24836111496722238 ~1989
24836411496728238 ~1989
248373314470719599 ~1991
24837623496752478 ~1989
24837863496757278 ~1989
24837899496757998 ~1989
24838199496763998 ~1989
24839579496791598 ~1989
24839723496794478 ~1989
24839879496797598 ~1989
24840071496801438 ~1989
24840743496814878 ~1989
24842171496843438 ~1989
24842399496847998 ~1989
24842459496849198 ~1989
24842903496858078 ~1989
Exponent Prime Factor Digits Year
24843743496874878 ~1989
24844139496882798 ~1989
24844499496889998 ~1989
248449791987598339 ~1990
24845231496904638 ~1989
24845339496906798 ~1989
24845963496919278 ~1989
24846491496929838 ~1989
24846683496933678 ~1989
24846743496934878 ~1989
248470992484709919 ~1990
24847103496942078 ~1989
248473674472526079 ~1991
24848039496960798 ~1989
24848123496962478 ~1989
24848459496969198 ~1989
24848819496976398 ~1989
24848963496979278 ~1989
248494011490964079 ~1990
24850229134191236710 ~1992
248502611491015679 ~1990
248502971491017839 ~1990
24850691497013838 ~1989
24850751497015038 ~1989
248507895467173599 ~1991
1575
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25-05-04