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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
4020287321622978 ~1984
402032380406477 ~1983
402043180408637 ~1983
4020461321636898 ~1984
402056380411277 ~1983
4020713241242798 ~1984
4020977241258638 ~1984
402107980421597 ~1983
402109180421837 ~1983
402115180423037 ~1983
4021153241269198 ~1984
40211776031765519 ~1987
4021261241275678 ~1984
4021397241283838 ~1984
4021397321711778
40214172573706899 ~1986
40215131206453919 ~1985
4021561241293678 ~1984
40216074182471299 ~1987
4021751723915198 ~1985
4021777241306638 ~1984
4021973241318398 ~1984
40220271930572979 ~1986
4022041241322478 ~1984
4022189321775138 ~1984
Exp. Prime Factor Digits Year
4022197643551538 ~1985
40222031608881219 ~1986
402230380446077 ~1983
402233980446797 ~1983
4022477241348638 ~1984
4022477563146798
402266380453277 ~1983
402278380455677 ~1983
402283180456637 ~1983
402289180457837 ~1983
4023401321872098 ~1984
4023599965663778 ~1985
40236191368030479 ~1986
402367180473437 ~1983
4023671321893698
4023731321898498 ~1984
40239731207191919 ~1985
4024037241442238 ~1984
4024039402403918 ~1984
4024289563400478 ~1985
4024369965848578 ~1985
40244118129310239 ~1987
402451180490237 ~1983
402473980494797 ~1983
402505180501037 ~1983
Exp. Prime Factor Digits Year
40252794186290179 ~1987
4025429563560078 ~1985
40257792898560899 ~1986
402578380515677 ~1983
4025797241547838 ~1984
4025941241556478 ~1984
4026017563642398 ~1985
402608380521677 ~1983
402613180522637 ~1983
4026137241568238 ~1984
4026313241578798 ~1984
4026667644266738 ~1985
402671980534397 ~1983
4026823402682318 ~1984
4027097241625838 ~1984
4027213644354098 ~1985
4027217241633038 ~1984
4027237241634238 ~1984
4027279966546978 ~1985
4027381108739287110 ~1988
4027393241643598 ~1984
402745180549037 ~1983
402755980551197 ~1983
4027579402757918 ~1984
402770380554077 ~1983
Exp. Prime Factor Digits Year
4027763132916179110 ~1988
402782380556477 ~1983
4027889563904478 ~1985
40280931208427919 ~1985
4028177563944798 ~1985
4028221644515378 ~1985
4028231322258498 ~1984
4028251402825118 ~1984
4028287725091678 ~1985
4028389886245598 ~1985
4028429563980078 ~1985
402847180569437 ~1983
402896380579277 ~1983
4029001141820835310 ~1988
4029049966971778 ~1985
4029253886435678 ~1985
4029517241771038 ~1984
4029587322366978 ~1984
4030133241807998 ~1984
4030363403036318 ~1984
4030387403038718 ~1984
4030393241823598 ~1984
4030421241825278 ~1984
4030421322433698
403057180611437 ~1983
605
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25-09-07