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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
4381549963940798 ~1985
4381681262900878 ~1984
4381709350536738 ~1984
438193187638637 ~1983
438215987643197 ~1983
43822011665236399 ~1986
438245987649197 ~1983
438251987650397 ~1983
4382593262955598 ~1984
4382801350624098 ~1984
4383017350641378 ~1984
43830611314918319 ~1986
438319187663837 ~1983
43832091051970179 ~1985
4383257613655998 ~1985
4383293262997598 ~1984
43834431841046079 ~1986
438350387670077 ~1983
4383689350695138 ~1984
438377987675597 ~1983
438383987676797 ~1983
43838399556769039
43839231841247679 ~1986
43841411315242319 ~1986
43841413068898719
Exp. Prime Factor Digits Year
43844471052267299 ~1985
4384469350757538 ~1984
4384603438460318 ~1985
4384673263080398 ~1984
4384781263086878 ~1984
438479987695997 ~1983
4385071438507118 ~1985
4385357350828578 ~1984
438560387712077 ~1983
4385687350854978 ~1984
438581987716397 ~1983
438638387727677 ~1983
438641987728397 ~1983
438661187732237 ~1983
438671987734397 ~1983
4386793701886898 ~1985
438680387736077 ~1983
4386821263209278 ~1984
43869191052860579 ~1985
4387039438703918 ~1985
438739187747837 ~1983
4387441263246478 ~1984
4387633263257998 ~1984
438770387754077 ~1983
4387769351021538 ~1984
Exp. Prime Factor Digits Year
438793187758637 ~1983
4388333614366638 ~1985
438865187773037 ~1983
4388779438877918 ~1985
4388869136054939110 ~1988
438908387781677 ~1983
438919187783837 ~1983
43892233160240579 ~1987
438926387785277 ~1983
4389269351141538 ~1984
4389367438936718 ~1985
4389523702323698 ~1985
4389611351168898 ~1984
4389821351185698 ~1984
438985187797037 ~1983
438997187799437 ~1983
4389977614596798 ~1985
43900731404823379 ~1986
439009187801837 ~1983
4390093965820478 ~1985
4390117263407038 ~1984
4390219439021918 ~1985
4390237263414238 ~1984
43903271053678499 ~1985
4390433263425998 ~1984
Exp. Prime Factor Digits Year
4390657263439438 ~1984
439070387814077 ~1983
4390937263456238 ~1984
43910031053840739 ~1985
4391041966029038 ~1985
439106387821277 ~1983
4391323439132318 ~1985
4391393263483598 ~1984
439148387829677 ~1983
439159187831837 ~1983
4391609614825278 ~1985
4391617263497038 ~1984
4391657263499438 ~1984
4391857702697138 ~1985
4391953263517198 ~1984
439211987842397 ~1983
4392119351369538
439220387844077 ~1983
4392313966308878 ~1985
4392317614924398 ~1985
4392433263545998 ~1984
439261187852237 ~1983
4392719351417538 ~1984
4392811439281118 ~1985
4393063439306318 ~1985
630
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25-06-01