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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
128471377082797 ~1980
128484177090477 ~1980
1284847128484718 ~1980
1284847308363298
1284863308367138 ~1981
1284901513960418 ~1982
1284931128493118 ~1980
128497125699437 ~1979
1284991231298398 ~1981
1285051128505118 ~1980
128518177110877 ~1980
1285237205637938 ~1981
1285259102820738 ~1980
128545125709037 ~1979
1285481102838498 ~1980
12855134293613439 ~1984
1285633514253218 ~1982
128579925715997 ~1979
128598177158877 ~1980
128601777161037 ~1980
128603925720797 ~1979
1286071128607118 ~1980
128609377165597 ~1980
1286267720309538 ~1982
1286273180078238 ~1981
Exp. Prime Factor Digits Year
128630325726077 ~1979
128639925727997 ~1979
1286581591827278 ~1982
1286669617601138 ~1982
128671125734237 ~1979
128677377206397 ~1980
12867771415454719 ~1983
1286833514733218 ~1982
128683777210237 ~1980
12869411003813999 ~1983
1286969308872578 ~1981
128706177223677 ~1980
128715777229437 ~1980
1287329695157678 ~1982
1287431102994498 ~1980
12874676797825779 ~1985
128747925749597 ~1979
128749125749837 ~1979
1287499540749598 ~1982
1287511128751118 ~1980
1287613309027138 ~1981
128762325752477 ~1979
128774325754877 ~1979
1287743643871518
128776177265677 ~1980
Exp. Prime Factor Digits Year
128784177270477 ~1980
128789925757997 ~1979
12878991648510739
128798325759677 ~1979
1287989103039138 ~1980
1287989798553198
128803377281997 ~1980
1288117206098738 ~1981
1288117618296178
1288213592577998 ~1982
128836177301677 ~1980
1288361103068898
128843925768797 ~1979
1288543438104638 ~1982
128864325772877 ~1979
128879925775997 ~1979
1288829103106338 ~1980
1288829412425298
1288919232005438 ~1981
1288921206227378 ~1981
128921377352797 ~1980
128923125784637 ~1979
1289261103140898 ~1980
128933377359997 ~1980
1289401346333108710 ~1986
Exp. Prime Factor Digits Year
128942325788477 ~1979
1289423541557678
1289447103155778 ~1980
128953125790637 ~1979
1289531103162498
1289747103179778 ~1980
12897491831443599 ~1983
1289867103189378 ~1980
1290019129001918 ~1980
1290031129003118 ~1980
129007777404637 ~1980
129008325801677 ~1979
1290083541834878
129014325802877 ~1979
1290143309634338
129020325804077 ~1979
1290379129037918 ~1980
1290503412960978 ~1982
129053925810797 ~1979
1290539103243138
129068325813677 ~1979
129079125815837 ~1979
1290857103268578 ~1980
1290869309808578 ~1981
129092325818477 ~1979
288
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25-05-04