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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
1264597682882398 ~1982
1264607101168578 ~1980
1264649379394718 ~1982
12646677689175379 ~1985
1264687227643678 ~1981
126474175884477 ~1980
126488325297677 ~1979
126489775893837 ~1980
1264969379490718 ~1982
126497925299597 ~1979
1265041278309038 ~1981
126505125301037 ~1979
1265051531321438
126511125302237 ~1979
126511375906797 ~1980
1265129784379998 ~1982
126528175916877 ~1980
12653211518385219 ~1983
1265431227777598 ~1981
126555775933437 ~1980
1265603329056798 ~1981
12656111139049919 ~1983
1265729303774978 ~1981
126584325316877 ~1979
1265923303821538 ~1981
Exp. Prime Factor Digits Year
1265959607660338 ~1982
1266157810340498 ~1982
1266197101295778 ~1980
12661973038872819
126626325325277 ~1979
12662634052041619
1266269177277678 ~1981
1266301582498478 ~1982
1266373683841438 ~1982
1266409278609998 ~1981
1266413487062439910 ~1987
126643125328637 ~1979
1266487126648718 ~1980
1266527303966498 ~1981
126656325331277 ~1979
12666113875829679 ~1984
1266731405353938 ~1982
126675776005437 ~1980
1266761481369198 ~1982
1266799430711678 ~1982
1266847202695538 ~1981
1266883506753218 ~1982
12668931089527999 ~1983
1266949304067778 ~1981
1267121380136318 ~1982
Exp. Prime Factor Digits Year
126715125343037 ~1979
1267151912348738
1267291202766578 ~1981
1267307709691938 ~1982
12675011521001219 ~1983
12677871014229619 ~1983
126785925357197 ~1979
1267859532500798
1267939507175618 ~1982
126794325358877 ~1979
1268053278971678 ~1981
1268093380427918 ~1982
1268207837016638 ~1982
1268261913147938 ~1982
126827925365597 ~1979
1268291101463298 ~1980
126835776101437 ~1980
1268429989374638 ~1983
1268593304462338 ~1981
1268669101493538 ~1980
1268681710461378 ~1982
12687592156890319 ~1983
126879776127837 ~1980
1268867710565538 ~1982
12689212004895199 ~1983
Exp. Prime Factor Digits Year
1268929380678718 ~1982
1269017177662398 ~1981
1269061279193438 ~1981
1269077101526178 ~1980
1269173177684238 ~1981
126917925383597 ~1979
1269223126922318 ~1980
126923925384797 ~1979
1269253203080498 ~1981
126926325385277 ~1979
126931125386237 ~1979
1269337583895038 ~1982
1269343203094898 ~1981
1269427126942718 ~1980
126946176167677 ~1980
1269547304691298 ~1981
12695891421939699 ~1983
126960176176077 ~1980
1269643304714338 ~1981
126973125394637 ~1979
126973376183997 ~1980
12700672463929999 ~1984
1270147228626478 ~1981
1270193711308098 ~1982
1270231127023118 ~1980
293
GIMPS The Prime Pages FactorDb.com
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26-04-05