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

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MnDetails
2362501
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 263
Factored
FactorDigitsBitsDate
361630479061860844183192374.92010-02-04 13:12:53
ECM
DigitsB1Curves
2550000280 / 280
30250000125 / 640
Estimated T-Level: 26.0
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredRick J ChanningA7C0BF9EB4FC07EA0Windows,Prime95,v13,(aka WP1)
Factored1999-05-02Richard RoehlA7C0BF9EB4FC07EA2082928Windows,Prime95,v18,NT service,(aka WU5)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-10-12Oliver Kruse4A090B455C9FAE871207309853
Verified
PRP without proof (not generated)
2017-11-24storm55104A090B455C9FAE87195731253
History
DateUserTypeResult
2022-03-09LordJuliusNFno factor TF: 1-60
2018-04-27alpertronNF-PM1B1=2000000, B2=60000000, E=12
2017-11-24storm5510C-PRPM2362501/36163047906186084418319 : 4A090B455C9FAE87
2017-10-12Oliver KruseC-PRPM2362501/36163047906186084418319 : 4A090B455C9FAE87
2010-02-04James ClassenF-ECMFactor: 36163047906186084418319
2009-01-14Sturle SundeNFno factor TF: 60-61
2003-09-21-anonymous-NF-PM1B1=2048, B2=204800
1999-05-02-anonymous-C-LLA7C0BF9EB4FC07EA
1999-03-01ANONYMOUSNFno factor TF: 1-59