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

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MnStatusDetails
369197Factored
FactorDigitsBitsDate
4639591609038857531858.72008-02-18 10:33:17
3465541835586298164525132478.22015-02-27 10:14:51
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6 ⓘ
TF below 2^83 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski3040
Verified (Factored)Michael J. Kilfoyle647B6F524CAD83040
Verified (Factored)Klaus Kastens647B6F524CAD83040
Verified (Factored)Eivind Triel647B6F524CAD8304342895
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-23Oliver KruseA2A4420BEE3FED742013
Verified2017-10-13Oliver KruseA2A4420BEE3FED74226436013
Verified2017-12-15ATHA2A4420BEE3FED74216524013
Unverified (Reliable)2020-04-18Oliver Kruse6A05DBCF12F55D__220419453
History
DateUserTypeResult
2024-02-17Denial140NF-PM1
B1=1000000, B2=8403510570
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-18Oliver KruseC-PRP
M369197/463959160903885753/346554183558629816452513 : 6A05DBCF12F55D__
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-12-15ATHC-PRP
M369197/463959160903885753/346554183558629816452513 : A2A4420BEE3FED74
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M369197/463959160903885753/346554183558629816452513 : A2A4420BEE3FED74
PRP: Unverified (Reliable)
PRP without proof (small exponent)
2017-09-23Oliver KruseC-PRP
M369197/known_factors : A2A4420BEE3FED74
PRP without proof (not generated)
2015-02-27TJAOIF-ECM
Factor: 346554183558629816452513 / (ECM curve 20, B1=50000, B2=5000000)
2008-02-18Steve ScottF-ECM
Factor: 463959160903885753