Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
3658283Composite, with 8 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
7316567722.8old
95115359826.52008-09-07 21:11:10
241446679927.82008-09-07 21:11:10
2342252273591237.82008-09-07 21:11:10
65700714041531342.62008-09-30 21:29:56
586299983923143831755.72015-02-09 12:37:28
3932461703604736840812168.42015-02-20 02:51:02
507867350818511865267612375.42015-11-25 20:05:16
ECM
DigitsB1Curves
2550000280 / 280
30250000134 / 640
Estimated T-Level: 26.0
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-11-07ATHAC2EB4FD735DCBEC846207953
Verified2017-11-27Oliver KruseAC2EB4FD735DCBEC8357982353
P-1 factors
DateFactorB1B2
2015-02-203932461703604736840815000000
2015-11-2550786735081851186526761100000023000000
History
DateUserTypeResult
2023-10-16James HeinrichF
Factor: 393246170360473684081 / TF: 68-69
2022-05-11JossNF-PM1
B1=29266264, B2=23434197150
2022-03-08LordJuliusNF
no factor from 2^65 to 2^66
2022-03-08LordJuliusNF
no factor from 2^64 to 2^65
2022-03-08LordJuliusNF
no factor from 2^63 to 2^64
2022-03-08LordJuliusNF
no factor from 2^62 to 2^63
2022-03-08LordJuliusNF
no factor from 2^56 to 2^62
2022-02-08JossNF-PM1
B1=10000000, B2=33132260700
2022-02-08JossNF-PM1
B1=10000000, B2=23128182000
2022-02-04JossNF
no factor from 2^71 to 2^72
2022-02-04JossNF
no factor from 2^70 to 2^71
2022-02-02JossNF-PM1
B1=10000000, B2=11049145800
2022-02-01JossNF-PM1
B1=10000000, B2=10011667050
2022-02-01JossNF-PM1
B1=10000000, B2=1006351500
2021-04-09Seth_TrNF-PM1
B1=200000000, B2=38200000000
2021-03-15Seth_TrNF-PM1
B1=50000000, B2=9050000000
2020-02-02JossNF-PM1
B1=6100000, B2=1100000000, E=12
2020-01-12JossNF-PM1
B1=6100000, B2=1000000000, E=12
2019-12-28Seth_TrNF
no factor from 2^69 to 2^70
2019-12-08Seth_TrNF
no factor from 2^67 to 2^68
2019-08-27alpertronNF-PM1
B1=30000000, B2=1000000000, E=12
2019-06-18Seth_TrNF
no factor from 2^66 to 2^67
2019-04-10JossNF-PM1
B1=3658283, B2=365828300, E=12
2017-11-27Oliver KruseC-PRP
M3658283/7316567/95115359/241446679/234225227359/6570071404153/58629998392314383/393246170360473684081/50786735081851186526761 : AC2EB4FD735DCBEC
PRP: Verified
PRP without proof (not generated)
2017-11-07ATHC-PRP
M3658283/7316567/95115359/241446679/234225227359/6570071404153/58629998392314383/393246170360473684081/50786735081851186526761 : AC2EB4FD735DCBEC
PRP: Verified
PRP without proof (not generated)
2015-11-25Squeeky_SquirrelF-PM1
Factor: 50786735081851186526761 / (P-1, B1=1000000, B2=23000000, E=12)
2015-02-20pdazzlF-PM1
Factor: 393246170360473684081 / (P-1, B1=500000)
2015-02-09TJAOIF
Factor: 58629998392314383 / TF: 55-56
2008-09-30markrF
Factor: 6570071404153
2008-09-07Will EdgingtonF
Factor: 234225227359
2008-09-07Will EdgingtonF
Factor: 241446679
2008-09-07Will EdgingtonF
Factor: 95115359