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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
9856061591363678 ~1987
9856061788484898
9856103197122078 ~1986
9856151788492098 ~1987
9856211197124238 ~1986
9856391197127838 ~1986
9856411985641118 ~1987
9856439197128798 ~1986
98564711774164799 ~1988
9856919197138398 ~1986
9857293591437598 ~1987
9857483197149678 ~1986
9857579197151598 ~1986
9857663197153278 ~1986
9858061591483678 ~1987
98580732168776079 ~1988
9858479197169598 ~1986
9858791197175838 ~1986
9859051985905118 ~1987
9859163197183278 ~1986
9859277788742178 ~1987
9859319788745538 ~1987
9859523197190478 ~1986
9859637591578238 ~1987
9859691197193838 ~1986
Exp. Prime Factor Digits Year
9859859197197198 ~1986
9859931197198638 ~1986
9860197591611838 ~1987
9860429788834338 ~1987
9860723197214478 ~1986
9860771197215438 ~1986
9860797591647838 ~1987
9860891788871298 ~1987
9860947986094718 ~1987
9861307986130718 ~1987
98618471775132479 ~1988
9862019197240398 ~1986
9862103197242078 ~1986
9862201591732078 ~1987
9862417591745038 ~1987
98625791775264239 ~1988
98626511578024179 ~1988
9862739197254798 ~1986
9862981591778878 ~1987
98630472367131299 ~1988
9863351197267038 ~1986
9863543197270878 ~1986
9864119197282398 ~1986
9864143197282878 ~1986
9864203197284078 ~1986
Exp. Prime Factor Digits Year
9864347789147778 ~1987
9864733591883998 ~1987
9864791197295838 ~1986
9864839197296798 ~1986
9864983197299678 ~1986
9865081591904878 ~1987
9865109789208738 ~1987
9865139197302798 ~1986
98651531578424499 ~1988
9865403197308078 ~1986
9865601789248098 ~1987
98657771578524339 ~1988
9865937591956238 ~1987
98661672367880099 ~1988
9866243197324878 ~1986
9866303197326078 ~1986
9867073592024398 ~1987
9867281592036878 ~1987
9867359197347198 ~1986
9867491197349838 ~1986
9867551197351038 ~1986
9867841592070478 ~1987
9867971197359438 ~1986
9868169789453538 ~1987
9868499197369998 ~1986
Exp. Prime Factor Digits Year
9868951986895118 ~1987
9868981592138878 ~1987
9869003197380078 ~1986
9869039197380798 ~1986
9869099789527938 ~1987
9869117592147038 ~1987
9869267213176167310 ~1991
9869399197387998 ~1986
9869801592188078 ~1987
9869963197399278 ~1986
9869999197399998 ~1986
98702473355883999 ~1989
9870451987045118 ~1987
9870683197413678 ~1986
9870961592257678 ~1987
98709671579354739 ~1988
9871157592269438 ~1987
9871259197425198 ~1986
9871331197426638 ~1986
9871331789706498
98714711579435379 ~1988
9871523197430478 ~1986
9871753592305198 ~1987
9871943197438878 ~1986
9871957592317438 ~1987
1027
GIMPS The Prime Pages FactorDb.com
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25-09-07