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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
19418111388362238 ~1988
194191331165147999 ~1989
19419479388389598 ~1988
19419611388392238 ~1988
19419863388397278 ~1988
19420031388400638 ~1988
19420139388402798 ~1988
19421183388423678 ~1988
194220171165321039 ~1989
19422059388441198 ~1988
19422323388446478 ~1988
19422659388453198 ~1988
194226794661442979 ~1991
19422803388456078 ~1988
19422839388456798 ~1988
194231211165387279 ~1989
19423403388468078 ~1988
194235434661650339 ~1991
194236931165421599 ~1989
19424423388488478 ~1988
194244531165467199 ~1989
19424651388493038 ~1988
19424711388494238 ~1988
194248031942480319 ~1990
19424843388496878 ~1988
Exponent Prime Factor Digits Year
194270413108326579 ~1990
19427279388545598 ~1988
19427459388549198 ~1988
19428011388560238 ~1988
19428179388563598 ~1988
19428371388567438 ~1988
19428443388568878 ~1988
19428551388571038 ~1988
19428743388574878 ~1988
19428791388575838 ~1988
194287911554303299
194290131165740799 ~1989
19429499388589998 ~1988
194297279326268979 ~1991
194300171165801039 ~1989
19430123388602478 ~1988
19430399388607998 ~1988
19430591388611838 ~1988
19430639388612798 ~1988
19430903388618078 ~1988
19431011388620238 ~1988
194312871554502979 ~1989
194324511554596099 ~1989
19432463388649278 ~1988
194330211165981279 ~1989
Exponent Prime Factor Digits Year
19433279388665598 ~1988
194334611166007679 ~1989
194338371166030239 ~1989
194339894664157379 ~1991
19434251388685038 ~1988
194345571166073439 ~1989
19434599388691998 ~1988
19434851388697038 ~1988
194352611166115679 ~1989
19435571388711438 ~1988
19435991388719838 ~1988
194360593498490639 ~1990
19436099388721998 ~1988
194367131166202799 ~1989
194369391554955139 ~1989
194369718163527839 ~1991
19436999388739998 ~1988
194370378941037039 ~1991
194381897775275619 ~1991
194384831943848319 ~1990
194385411166312479 ~1989
194387171166323039 ~1989
19438943388778878 ~1988
19439159388783198 ~1988
19439363388787278 ~1988
Exponent Prime Factor Digits Year
19439723388794478 ~1988
194405831944058319 ~1990
19440731388814638 ~1988
194408511555268099 ~1989
19440959388819198 ~1988
19441343388826878 ~1988
19441679388833598 ~1988
19442123388842478 ~1988
19442603388852078 ~1988
19443071388861438 ~1988
194431633110906099 ~1990
19443551388871038 ~1988
19443779388875598 ~1988
194437931166627599 ~1989
194438572722139999 ~1990
19443899388877998 ~1988
19444259388885198 ~1988
19444301151665547910 ~1992
19444811388896238 ~1988
19444871388897438 ~1988
19445171388903438 ~1988
194454791944547919 ~1990
19445903388918078 ~1988
19446131388922638 ~1988
194462571166775439 ~1989
1399
GIMPS The Prime Pages FactorDb.com
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25-05-04