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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.
Exp. Prime Factor Digits Year
1315231236741598 ~1981
1315367315688098 ~1981
1315621605185678 ~1982
131567378940397 ~1980
131582326316477 ~1979
131587126317437 ~1979
1315889315813378 ~1981
1315891526356418 ~1982
13159276763864799 ~1985
131594326318877 ~1979
131603926320797 ~1979
131617778970637 ~1980
1316279236930238 ~1981
131636326327277 ~1979
13163631369017539
1316593210654898 ~1981
131660326332077 ~1979
13166211263956179 ~1983
1316639236995038 ~1981
1316677395003118 ~1982
131669926333997 ~1979
1316729421353298 ~1982
131680179008077 ~1980
131683126336637 ~1979
1316923131692318 ~1981
Exp. Prime Factor Digits Year
131701379020797 ~1980
131705926341197 ~1979
1317059105364738
131713126342637 ~1979
131730179038077 ~1980
1317317316156098 ~1981
1317359105388738 ~1980
131737779042637 ~1980
131741926348397 ~1979
131749379049597 ~1980
1317521105401698 ~1980
1317553210808498 ~1981
1317677184474798 ~1981
1317677737899138
1317793210846898 ~1981
1317887105430978 ~1980
1317929105434338 ~1980
1317971738063778 ~1982
1318063131806318 ~1981
131813926362797 ~1979
1318169395450718 ~1982
1318183870000798 ~1983
131819379091597 ~1980
1318279237290238 ~1981
131828326365677 ~1979
Exp. Prime Factor Digits Year
131837926367597 ~1979
131875379125197 ~1980
1318753395625918
1318841395652318 ~1982
131889779133837 ~1980
131893779136237 ~1980
131899126379837 ~1979
13189971450896719 ~1983
1319023131902318 ~1981
1319057633147378 ~1982
1319107448496398 ~1982
13191371266371539 ~1983
1319207105536578 ~1980
1319419844428178 ~1982
131945926389197 ~1979
1319477105558178 ~1980
1319561105564898 ~1980
1319609105568738 ~1980
131965126393037 ~1979
1319707237547278 ~1981
131972326394477 ~1979
1319743316738338 ~1981
13199331055946419 ~1983
131996326399277 ~1979
1320023554409678 ~1982
Exp. Prime Factor Digits Year
1320113739263298 ~1982
132019126403837 ~1979
132025126405037 ~1979
13203311478770739 ~1983
1320667871640238 ~1983
13207211479207539 ~1983
13209733064657379 ~1984
132103126420637 ~1979
132115779269437 ~1980
132121379272797 ~1980
132127379276397 ~1980
132131926426397 ~1979
1321349105707938 ~1980
132147779288637 ~1980
132151379290797 ~1980
1321577185020798 ~1981
1321589502203838 ~1982
1321627237892878 ~1981
1321637396491118 ~1982
132169379301597 ~1980
1321763422964178 ~1982
132182326436477 ~1979
1321867211498738 ~1981
1321919105753538 ~1980
132200326440077 ~1979
300
GIMPS The Prime Pages FactorDb.com
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26-03-08