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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
6557753393465198 ~1985
6557807524624578 ~1986
6557981393478878 ~1985
6558119131162398 ~1984
65581331049301299 ~1986
6558179131163598 ~1984
6558371131167438 ~1984
6558479131169598 ~1984
65585473148102579 ~1988
65587071180567279 ~1987
6559079131181598 ~1984
6559081393544878 ~1985
6559261393555678 ~1985
6559457393567438 ~1985
65594573148539379
6559493393569598 ~1985
6559643131192878 ~1984
6559691131193838 ~1984
6559733393583998 ~1985
6559823131196478 ~1984
65598432623937219 ~1987
65598731443172079 ~1987
65600271705607039 ~1987
6560053393603198 ~1985
6560243131204878 ~1984
Exp. Prime Factor Digits Year
6560341393620478 ~1985
6560357393621438 ~1985
65604131574499139 ~1987
6560431656043118 ~1986
6560447524835778 ~1986
6560579131211598 ~1984
6560663131213278 ~1984
6561311524904898 ~1986
6561521524921698 ~1986
6561539131230798 ~1984
6561547656154718 ~1986
6561619656161918 ~1986
65616731049867699 ~1986
6561791524943298 ~1986
6561833393709998 ~1985
6561937393716238 ~1985
65622431049958899 ~1986
6562271131245438 ~1984
6562559525004738 ~1986
6562691131253838 ~1984
6562723656272318 ~1986
6562763131255278 ~1984
65628131050050099 ~1986
6562931525034498 ~1986
6563159131263198 ~1984
Exp. Prime Factor Digits Year
6563383656338318 ~1986
6563743656374318 ~1986
65640012625600419 ~1987
65640111706642879 ~1987
6564247656424718 ~1986
6564359131287198 ~1984
6564359525148738
6565259131305198 ~1984
65653671181766079 ~1987
6565379131307598 ~1984
6565463131309278 ~1984
6565567656556718 ~1986
6565661525252898 ~1986
6565709525256738 ~1986
6565739131314798 ~1984
6565907525272578 ~1986
6565913393954798 ~1985
6565967525277378 ~1986
65659871575836899 ~1987
6566291131325838 ~1984
65663034727738179 ~1988
6566783131335678 ~1984
6566977394018638 ~1985
6567157394029438 ~1985
6567193394031598 ~1985
Exp. Prime Factor Digits Year
6567269525381538 ~1986
65673671182126079 ~1987
6567479131349598 ~1984
6567563131351278 ~1984
6567779525422338 ~1986
6567817394069038 ~1985
65678511707641279 ~1987
6568151131363038 ~1984
6568183656818318 ~1986
6568223131364478 ~1984
65684171050946739 ~1986
6568439525475138 ~1986
65684471050951539 ~1986
6568469525477538 ~1986
6568643131372878 ~1984
6568811525504898 ~1986
6568841394130478 ~1985
6569219131384398 ~1984
6569243131384878 ~1984
6569267525541378 ~1986
65695813022007279 ~1988
6569723131394478 ~1984
6569729525578338 ~1986
65700891971026719 ~1987
6570191525615298 ~1986
831
GIMPS The Prime Pages FactorDb.com
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26-03-15