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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
29861711731979199 ~1985
2986259716702178 ~1984
2986301179178078 ~1983
2986301238904098
2986387477821938 ~1984
29864091134835439 ~1985
2986453477832498 ~1984
2986519537573438 ~1984
29865312867069779 ~1986
298655959731197 ~1982
2986561179193678 ~1983
2986657179199438 ~1983
2986721238937698 ~1983
29867296929211299 ~1987
298679959735997 ~1982
2986799238943938
2986811955779538 ~1985
298685959737197 ~1982
2986939148749562310 ~1987
2987057179223438 ~1983
29872792389823219 ~1986
2987437179246238 ~1983
2987459537742638 ~1984
2987771239021698 ~1983
2987773657310078 ~1984
Exp. Prime Factor Digits Year
29877911732918799 ~1985
2987863298786318 ~1983
2987983478077298 ~1984
2988019537843438 ~1984
2988341179300478 ~1983
2988389418374478 ~1984
29885231195409219 ~1985
2988707537967278 ~1984
2988721657518638 ~1984
2988847298884718 ~1983
29889611195584419 ~1985
29890031016261039 ~1985
2989033179341998 ~1983
2989033478245298
298913959782797 ~1982
2989139538045038
2989177179350638 ~1983
2989201179352078 ~1983
2989211239136898 ~1983
298931959786397 ~1982
298939159787837 ~1982
2989513657692878 ~1984
298969159793837 ~1982
29897591016518079 ~1985
29900211853813039 ~1985
Exp. Prime Factor Digits Year
29900271674415139 ~1985
299006359801277 ~1982
2990083299008318 ~1983
2990213418629838 ~1984
2990237179414238 ~1983
2990371478459378 ~1984
2990677179440638 ~1983
2990677717762498
2990753957040978 ~1985
299078359815677 ~1982
2990791478526578 ~1984
299083159816637 ~1982
2990833179449998 ~1983
2990893717814338 ~1984
2990987777656638 ~1984
29910771675003139 ~1985
2991139299113918 ~1983
299120359824077 ~1982
2991229658070398 ~1984
2991367299136718 ~1983
2991421179485278 ~1983
29914311495715519 ~1985
2991433179485998 ~1983
29915112692359919 ~1986
29917331196693219 ~1985
Exp. Prime Factor Digits Year
2991853658207678 ~1984
29918532154134179
299189959837997 ~1982
2992037179522238 ~1983
2992117478738738 ~1984
2992207299220718 ~1983
29922191196887619 ~1985
2992259239380738 ~1983
2992259201678256710
2992267299226718 ~1983
2992321179539278 ~1983
2992393179543598 ~1983
2992417478786738 ~1984
2992513179550798 ~1983
2992711299271118 ~1983
2992777179566638 ~1983
2992841179570478 ~1983
299285959857197 ~1982
2992939299293918 ~1983
2992949239435938 ~1983
2992949419012878
299333959866797 ~1982
299336359867277 ~1982
2993423778289998 ~1984
2993437718424898 ~1984
522
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26-09-27