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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
1282069307696578 ~1981
128213376927997 ~1980
128216325643277 ~1979
1282261512904418 ~1982
1282279307746978 ~1981
128238176942877 ~1980
1282469384740718 ~1982
1282471538637838 ~1982
128249925649997 ~1979
128251125650237 ~1979
1282517179552398 ~1981
1282817102625378 ~1980
1282969615825138 ~1982
1283011513204418 ~1982
1283027102642178 ~1980
1283027307926498
128306325661277 ~1979
128309925661997 ~1979
1283099230957838
128333925666797 ~1979
1283441102675298 ~1980
12834411411785119
1283521282374638 ~1981
128353777012237 ~1980
1283537693109998
Exp. Prime Factor Digits Year
1283549102683938 ~1980
1283563205370098 ~1981
1283731847262478 ~1982
128375925675197 ~1979
128387925677597 ~1979
128393925678797 ~1979
1284007744724078 ~1982
128413125682637 ~1979
1284293410973778 ~1982
128431777059037 ~1980
1284329109681696710 ~1985
1284487513794818 ~1982
1284511205521778 ~1981
128455125691037 ~1979
1284583128458318 ~1980
128460177076077 ~1980
1284601513840418
128471377082797 ~1980
128484177090477 ~1980
1284847128484718 ~1980
1284847308363298
1284863308367138 ~1981
1284901513960418 ~1982
1284931128493118 ~1980
128497125699437 ~1979
Exp. Prime Factor Digits Year
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
128630325726077 ~1979
128639925727997 ~1979
1286581591827278 ~1982
1286669617601138 ~1982
128671125734237 ~1979
128677377206397 ~1980
12867771415454719 ~1983
1286833514733218 ~1982
Exp. Prime Factor Digits Year
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
128776177265677 ~1980
128784177270477 ~1980
128789925757997 ~1979
12878991648510739
128798325759677 ~1979
1287989103039138 ~1980
1287989798553198
128803377281997 ~1980
1288117206098738 ~1981
1288117618296178
287
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25-04-13