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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
2384803238480318 ~1983
2384821381571378 ~1983
238495147699037 ~1981
2384971429294798 ~1983
2385113143106798 ~1982
2385181381628978 ~1983
238526347705277 ~1981
23852632480673539
2385433572503938 ~1983
2385653572556738 ~1983
2385857143151438 ~1982
238598347719677 ~1981
238637947727597 ~1981
2386453715935918 ~1984
238667947733597 ~1981
238673947734797 ~1981
2386793334151038 ~1983
2386793763773778
238688347737677 ~1981
2386889716066718 ~1984
2387051190964098 ~1982
2387201190976098 ~1982
2387207190976578 ~1982
2387299238729918 ~1983
2387477572994498 ~1983
Exp. Prime Factor Digits Year
2387501716250318 ~1984
238754347750877 ~1981
238757947751597 ~1981
2387729191018338 ~1982
2387729764073298
2387857573085698 ~1983
2387911382065778 ~1983
2387969191037538 ~1982
23880371098497039 ~1984
23880832865699619 ~1985
2388097382095538 ~1983
2388103573144738 ~1983
2388181143290878 ~1982
23881815731634419
2388257191060578 ~1982
2388257716477118
238844347768877 ~1981
2388473143308398 ~1982
23884991528639379 ~1984
2388677716603118 ~1984
238883947776797 ~1981
238886347777277 ~1981
238898347779677 ~1981
23890973058044179 ~1985
2389249525634798 ~1983
Exp. Prime Factor Digits Year
238937947787597 ~1981
238939147787837 ~1981
238946347789277 ~1981
2389483382317298 ~1983
2389619430131438 ~1983
2389637573512898 ~1983
2390021191201698 ~1982
239009947801997 ~1981
2390221525848638 ~1983
239024347804877 ~1981
2390299430253838 ~1983
239035147807037 ~1981
239041147808237 ~1981
239047147809437 ~1981
239051947810397 ~1981
2390623239062318 ~1983
2390737143444238 ~1982
2390737382517938
2390767239076718 ~1983
239083147816637 ~1981
239087947817597 ~1981
23909572056223039 ~1985
239107147821437 ~1981
2391107621687838 ~1984
2391113334755838 ~1983
Exp. Prime Factor Digits Year
2391469526123198 ~1983
2391539191323138 ~1982
239167147833437 ~1981
23917694400854979 ~1986
2391799239179918 ~1983
2391953143517198 ~1982
239213947842797 ~1981
2392193717657918 ~1984
2392249956899618 ~1984
239234347846877 ~1981
23925612440412239 ~1985
239261947852397 ~1981
2392661191412898 ~1982
2392681382828978 ~1983
239275147855037 ~1981
239281147856237 ~1981
2392961143577678 ~1982
2392961765747538
2393119239311918 ~1983
2393189717956718 ~1984
239329147865837 ~1981
239335147867037 ~1981
239351947870397 ~1981
2393717191497378 ~1982
2393761383001778 ~1983
444
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26-04-05