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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
2763251884240338 ~1984
276331155266237 ~1981
2763331442132978 ~1984
2763413165804798 ~1982
2763491718507678 ~1984
2763577165814638 ~1982
2763617221089378 ~1983
2763659221092738 ~1983
2763811442209778 ~1984
276427155285437 ~1981
2764277165856638 ~1982
2764277221142178
2764423663461538 ~1984
2764499663479778 ~1984
2764819276481918 ~1983
2764847497672478 ~1984
2764891497680398 ~1984
2765093165905598 ~1982
2765117221209378 ~1983
2765173165910398 ~1982
2765173608338078
276521955304397 ~1981
2765227276522718 ~1983
2765251276525118 ~1983
2765333165919998 ~1982
Exp. Prime Factor Digits Year
2765387497769678 ~1984
276551955310397 ~1981
276557955311597 ~1981
2765591497806398 ~1984
2765953442552498 ~1984
276611955322397 ~1981
2766227221298178 ~1983
2766341829902318 ~1984
2766389221311138 ~1983
276655155331037 ~1981
276661155332237 ~1981
2766667276666718 ~1983
276667155333437 ~1981
2766713387339838 ~1983
2766901166014078 ~1982
2766979276697918 ~1983
2766997166019838 ~1982
2767157387401998 ~1983
2767229885513298 ~1984
2767361166041678 ~1982
2767409664178178 ~1984
2767529221402338 ~1983
2767561830268318 ~1984
2767573664217538 ~1984
2767603276760318 ~1983
Exp. Prime Factor Digits Year
27676273597915119 ~1986
276779955355997 ~1981
276787155357437 ~1981
2768011276801118 ~1983
276823155364637 ~1981
2768291498292398 ~1984
27684191328841139 ~1985
2768651221492098 ~1983
27686511328952499
2768789221503138 ~1983
27687914928447999 ~1986
276881955376397 ~1981
276893955378797 ~1981
2769001166140078 ~1982
276908355381677 ~1981
27691211329178099 ~1985
276944355388877 ~1981
2769619276961918 ~1983
2769647664715298 ~1984
276971955394397 ~1981
2769911221592898 ~1983
276998355399677 ~1981
2770091221607298 ~1983
277025955405197 ~1981
2770259221620738
Exp. Prime Factor Digits Year
2770267277026718 ~1983
277057155411437 ~1981
27705711329874099
2770769221661538 ~1983
2770769831230718
277103955420797 ~1981
2771057221684578 ~1983
2771117166267038 ~1982
27715333492131599 ~1986
2771759665222178 ~1984
2771957166317438 ~1982
277196355439277 ~1981
2771963720710398
2772017388082398 ~1983
2772061166323678 ~1982
2772137166328238 ~1982
2772227221778178 ~1983
277223955444797 ~1981
27723111386155519 ~1985
277238355447677 ~1981
2772409609929998 ~1984
2772457166347438 ~1982
2772571443611378 ~1984
2772697443631538 ~1984
2772767221821378 ~1983
482
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25-11-17