Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
1013501Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
339806615291135.0old
7158968389431209531859.32015-11-11 11:32:43
1570761283376794128472167.12017-01-06 10:38:05
4729646598116426728310517612788.62017-01-06 10:38:06
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-09-01Kriesel9C9E69CC84FE0725013
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-05Oliver KruseA8163249323B83C94013
Verified2017-10-16kkmrkkblmbrbkA8163249323B83C9478519413
History
DateUserTypeResult
2025-09-01ANONYMOUSCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-01KrieselC-PRP
9C9E69CC84FE0725
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2021-06-28ViliamFNF-PM1
B1=10000000, B2=1000000000
2017-10-16kkmrkkblmbrbkC-PRP
M1013501/33980661529/715896838943120953/157076128337679412847/472964659811642672831051761 : A8163249323B83C9
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1013501/33980661529/715896838943120953/157076128337679412847/472964659811642672831051761 : A8163249323B83C9
PRP: Verified
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M1013501/33980661529/715896838943120953/157076128337679412847/472964659811642672831051761 : A8163249323B83C9
PRP without proof (not generated)
2017-01-06TJAOIF-ECM
Factor: 472964659811642672831051761 / (ECM curve 24, B1=50000, B2=5000000)
2017-01-06TJAOIF-ECM
Factor: 157076128337679412847 / (ECM curve 1, B1=50000, B2=5000000)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12
2015-11-11TJAOIF
Factor: 715896838943120953 / TF: 59-60