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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
9508979190179598 ~1985
9508991190179838 ~1985
95089971331259599 ~1988
9509183190183678 ~1985
9509231190184638 ~1985
9509497570569838 ~1987
9509701570582078 ~1987
9509789760783138 ~1987
9509873570592398 ~1987
9510041570602478 ~1987
95101335135471839 ~1989
9510551190211038 ~1985
9510563190211278 ~1985
9510863190217278 ~1985
9510899190217998 ~1985
9511087951108718 ~1987
9511091190221838 ~1985
9511291951129118 ~1987
9511871190237438 ~1985
95120039892483139 ~1990
9512351760988098 ~1987
9512641570758478 ~1987
9512759190255198 ~1985
9512873570772398 ~1987
9513359190267198 ~1985
Exp. Prime Factor Digits Year
9513473570808398 ~1987
9513527761082178 ~1987
9513923190278478 ~1985
9513937570836238 ~1987
9514073570844398 ~1987
95141518562735919 ~1990
95145531332037439 ~1988
9514643190292878 ~1985
9514691190293838 ~1985
9514859190297198 ~1985
95148911712680399 ~1988
9514919190298398 ~1985
9515069761205538 ~1987
9515459190309198 ~1985
9515531190310638 ~1985
9515593570935598 ~1987
9515659951565918 ~1987
9515873570952398 ~1987
9516281570976878 ~1987
9516443190328878 ~1985
9516673571000398 ~1987
9517381571042878 ~1987
9517439190348798 ~1985
9517691190353838 ~1985
9517691761415298
Exp. Prime Factor Digits Year
95177594568524339 ~1989
9518071951807118 ~1987
9518219190364398 ~1985
9518339190366798 ~1985
9518471190369438 ~1985
95184771332586799 ~1988
9519179190383598 ~1985
9519179761534338
9519203190384078 ~1985
9519481571168878 ~1987
9519557571173438 ~1987
95199432284786339 ~1988
9520037571202238 ~1987
95200617616048819 ~1989
9520559190411198 ~1985
9520747952074718 ~1987
9520939952093918 ~1987
9521051190421038 ~1985
9521279190425598 ~1985
9521297571277838 ~1987
95215692285176579 ~1988
9521723190434478 ~1985
9521851952185118 ~1987
9522113571326798 ~1987
9522119190442398 ~1985
Exp. Prime Factor Digits Year
9522203190444078 ~1985
9522361571341678 ~1987
9522523952252318 ~1987
9522791190455838 ~1985
9522871952287118 ~1987
9523001571380078 ~1987
9523139761851138 ~1987
9523181571390878 ~1987
9523229761858338 ~1987
9523271190465438 ~1985
95239032285736739 ~1988
9524261571455678 ~1987
9524279761942338 ~1987
9524363190487278 ~1985
95243931333415039 ~1988
9524447190488940110 ~1990
9524591190491838 ~1985
95249877048490399 ~1989
9525077571504638 ~1987
9525371190507438 ~1985
9525563190511278 ~1985
9525871952587118 ~1987
9526259190525198 ~1985
9526271190525438 ~1985
9526403190528078 ~1985
991
GIMPS The Prime Pages FactorDb.com
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25-06-01