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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
2530981556815838 ~1984
253109950621997 ~1981
2531101151866078 ~1982
253118350623677 ~1981
2531293405006898 ~1983
2531413151884798 ~1982
253142350628477 ~1981
253151950630397 ~1981
253166350633277 ~1981
2531761405081778 ~1983
2531821151909278 ~1982
2531833607639938 ~1984
2531917151915038 ~1982
2531983405117298 ~1983
25320072683927439 ~1985
25320072886487999
253208350641677 ~1981
253214350642877 ~1981
2532143658357198
2532307405169138 ~1983
2532437202594978 ~1982
25325594507955039 ~1986
2532787405245938 ~1983
253279150655837 ~1981
2532991405278578 ~1983
Exp. Prime Factor Digits Year
2533081405292978 ~1983
2533127202650178 ~1982
25331891367922079 ~1984
2533199202655938 ~1982
2533303253330318 ~1983
25333136890611379 ~1986
2533331455999598 ~1983
2533331658666078
25333939880232719 ~1987
2533397608015298 ~1984
2533681152020878 ~1982
2533691336474164910 ~1988
2534041152042478 ~1982
2534297608231298 ~1984
2534431253443118 ~1983
2534561202764898 ~1982
2534603221017381710 ~1987
25346715474889379 ~1986
2534681202774498 ~1982
253478350695677 ~1981
253487950697597 ~1981
25348811013952419 ~1984
2534993354899038 ~1983
2534993608398338
25350072230806179 ~1985
Exp. Prime Factor Digits Year
2535019253501918 ~1983
2535059456310638 ~1983
2535109557723998 ~1984
2535331456359598 ~1983
25353891216986739 ~1984
2535443811341778 ~1984
253547950709597 ~1981
2535527456394878 ~1983
2535571253557118 ~1983
253567150713437 ~1981
2535937405749938 ~1983
253595950719197 ~1981
253603150720637 ~1981
2536123405779698 ~1983
2536267253626718 ~1983
2536267405802738
253634350726877 ~1981
2536361202908898 ~1982
2536559811698898 ~1984
2536561152193678 ~1982
2536631456593598 ~1983
253664350732877 ~1981
2536873608849538 ~1984
2536903608856738 ~1984
2537083253708318 ~1983
Exp. Prime Factor Digits Year
25372192638707779 ~1985
2537237202978978 ~1982
2537347253734718 ~1983
2537363608967138 ~1984
253799950759997 ~1981
2537999203039938
2538091253809118 ~1983
2538101152286078 ~1982
2538157152289438 ~1982
2538241152294478 ~1982
2538337609200898 ~1984
253835950767197 ~1981
253847950769597 ~1981
2538493406158898 ~1983
2538521152311278 ~1982
2538527609246498 ~1984
2538617609268098 ~1984
2538619253861918 ~1983
2538619609268578
253880350776077 ~1981
253898350779677 ~1981
2539157355481998 ~1983
2539213152352798 ~1982
2539343660229198 ~1984
2539393152363598 ~1982
452
GIMPS The Prime Pages FactorDb.com
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25-09-07