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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
408499181699837 ~1983
408511181702237 ~1983
4085383653661298 ~1985
408551981710397 ~1983
4085519326841538
4085537326842978 ~1984
408569981713997 ~1983
4085791408579118 ~1984
4085849572018878 ~1985
4085857245151438 ~1984
4085891326871298 ~1984
408601181720237 ~1983
408605981721197 ~1983
4086241653798578 ~1985
4086403980736738 ~1985
4086491735568398 ~1985
4086829899102398 ~1985
4087151326972098 ~1984
4087597245255838 ~1984
4087739327019138 ~1984
4087757245265438 ~1984
4087847327027778 ~1984
40879011308128339 ~1986
408799181759837 ~1983
408803981760797 ~1983
Exp. Prime Factor Digits Year
4088213107928823310 ~1988
4088471327077698 ~1984
408872381774477 ~1983
408887981777597 ~1983
4089037981368898 ~1985
408919181783837 ~1983
4089191327135298
40892091226762719 ~1986
4089347327147778 ~1984
40895091226852719 ~1986
4089521245371278 ~1984
4089599327167938 ~1984
408971981794397 ~1983
4089889277294474310 ~1989
4090003654400498 ~1985
409037981807597 ~1983
4090441245426478 ~1984
4090441899897038
409051181810237 ~1983
409067981813597 ~1983
409076381815277 ~1983
4090841245450478 ~1984
409099181819837 ~1983
4091081327286498 ~1984
4091281654604978 ~1985
Exp. Prime Factor Digits Year
40913231636529219 ~1986
4091587409158718 ~1984
40915871636634819
4091609327328738 ~1984
4091627327330178 ~1984
409177181835437 ~1983
4091777245506638 ~1984
4091777982026498
409183181836637 ~1983
4091909327352738 ~1984
4092079409207918 ~1984
409208381841677 ~1983
4092157245529438 ~1984
4092317982156098 ~1985
409232381846477 ~1983
409238381847677 ~1983
4092401327392098 ~1984
4092433245545998 ~1984
409244381848877 ~1983
4092523409252318 ~1984
4092677327414178 ~1984
4092749327419938 ~1984
40927575893570099 ~1987
4092763409276318 ~1984
409298381859677 ~1983
Exp. Prime Factor Digits Year
4093087409308718 ~1984
409322381864477 ~1983
4093253245595198 ~1984
4093307736795278 ~1985
409334381866877 ~1983
409340381868077 ~1983
4093451327476098 ~1984
409357181871437 ~1983
40935894257332579 ~1987
4093627409362718 ~1984
4093751327500098 ~1984
409381181876237 ~1983
409387181877437 ~1983
409400381880077 ~1983
4094021327521698 ~1984
4094117245647038 ~1984
4094281245656878 ~1984
4094599409459918 ~1984
4094627327570178 ~1984
4094681245680878 ~1984
40946831637873219 ~1986
4094813245688798 ~1984
409481981896397 ~1983
409499981899997 ~1983
4095059327604738 ~1984
615
GIMPS The Prime Pages FactorDb.com
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25-10-26