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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
395204379040877 ~1983
395210379042077 ~1983
3952181316174498 ~1984
3952301316184098 ~1984
3952391316191298 ~1984
395258379051677 ~1983
395291979058397 ~1983
39529672608958239 ~1986
3953017237181038 ~1984
3953093237185598 ~1984
3953479395347918 ~1984
395359179071837 ~1983
3953801237228078 ~1984
39538013083964799
395381979076397 ~1983
3954053237243198 ~1984
3954127632660338 ~1985
3954221316337698 ~1984
3954361632697778 ~1985
395437179087437 ~1983
3954397632703538 ~1985
39543977829706079
3954473553626238 ~1985
39545632610011599 ~1986
3954611316368898 ~1984
Exp. Prime Factor Digits Year
3954683949123938 ~1985
3954707316376578 ~1984
395471979094397 ~1983
395485179097037 ~1983
395495979099197 ~1983
395497179099437 ~1983
395507979101597 ~1983
3955279949266978 ~1985
3955291395529118 ~1984
3955331711959598 ~1985
395569179113837 ~1983
3955717237343038 ~1984
395615979123197 ~1983
395617179123437 ~1983
39562613165008819 ~1986
395666379133277 ~1983
395678379135677 ~1983
395683179136637 ~1983
3957103395710318 ~1984
395717979143597 ~1983
3957227316578178 ~1984
3957269316581538 ~1984
39572991662065599 ~1986
3957313500204363310 ~1989
395768379153677 ~1983
Exp. Prime Factor Digits Year
395774379154877 ~1983
3958091316647298 ~1984
3958109316648738 ~1984
395821179164237 ~1983
3958337316666978 ~1984
39583494354183919 ~1987
395843979168797 ~1983
395852379170477 ~1983
3958621237517278 ~1984
395893179178637 ~1983
3958937237536238 ~1984
3959141237548478 ~1984
395915979183197 ~1983
39591911662860239 ~1986
3959359950246178 ~1985
395936379187277 ~1983
3959441316755298 ~1984
3959491712708398 ~1985
39595311267049939 ~1985
395959179191837 ~1983
39595912217370979
395984379196877 ~1983
3959849316787938 ~1984
3959911395991118 ~1984
39599471583978819 ~1986
Exp. Prime Factor Digits Year
39602633168210419 ~1986
3960317554444398 ~1985
39603771188113119 ~1985
3960673950561538 ~1985
3960701237642078 ~1984
3960833237649998 ~1984
396095979219197 ~1983
3961213237672798 ~1984
396128379225677 ~1983
3961333237679998 ~1984
3961457237687438 ~1984
3961501237690078 ~1984
3961579713084238 ~1985
396161979232397 ~1983
39616311030024079 ~1985
3961753237705198 ~1984
3961759713116638 ~1985
3961877316950178 ~1984
396203979240797 ~1983
396224379244877 ~1983
396230379246077 ~1983
3962471713244798 ~1985
3962593237755598 ~1984
3962789317023138 ~1984
39631611506001199 ~1986
618
GIMPS The Prime Pages FactorDb.com
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26-07-05