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

PrimeNet Exponent Status

Exponent Range:





MnDetails
2477
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
1074761362742976207201101299342177239232524652978640737117759192.82019-04-14 21:26:46
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
6026000000088820 / 105362
Estimated T-Level: 59.2 ⓘ
TF below 2^192 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredUnknown4D7E0Unknown,(aka U)
FactoredGeorge Woltman0D068856EB13CD7E0Woltman,Prime95,first web release,(aka W4)
FactoredBrian J. Beesley0D068856EB13CD7E0Mac,John Sweeney,v1.4,(aka J3)
Factored2015-04-11MadPoo 🙂0D068856EB13CD7E1312Windows 64-bit,Prime95,v26,(aka We4)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
No proof (small exponent)
2019-04-15M8909387C8158951E7DAB8071195553
Verified
No proof (small exponent)
2019-04-15matzetoniC8158951E7DAB8071118953
Verified
No proof (small exponent)
2019-04-15artorolloC8158951E7DAB807116953
Verified
No proof (small exponent)
2020-04-17Oliver KruseC8158951E7DAB8071130753
History
DateUserTypeResult
2025-04-06masserNF-PP1Start=108/37, B1=4400000000, B2=4395600000000
2020-04-17Oliver KruseC-PRPM2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807
2019-04-15artorolloC-PRPM2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807
2019-04-15matzetoniC-PRPM2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807
2019-04-15M8909387C-PRPM2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807
2019-04-14Ryan PropperF-ECMFactor: 10747613627429762072011012993421772392325246529786407371177
2018-11-06JossNF-PM1B1=200000000000, B2=18000000000000, E=12
2018-11-05JossNF-PM1B1=200000000000, B2=15000000000000, E=12
2018-11-02JossNF-PM1B1=200000000000, B2=7000000000000, E=12
2018-11-01JossNF-PM1B1=200000000000, B2=4000000000000, E=12
2018-10-31JossNF-PM1B1=200000000000, B2=2000000000000, E=12
2018-02-23snme2pm1NFno factor TF: 63-64
2016-11-21snme2pm1NFno factor TF: 62-63
2016-02-23LaurVNFno factor TF: 57-58
2015-06-22treborNF-PM1B1=100000000000, B2=10000000000000, E=12
2015-05-27snme2pm1NFno factor TF: 61-62
2015-04-11MadPoo 🙂C-LL0D068856EB13CD7E
2013-06-19BloodIceNF-PM1B1=120000000000
2012-05-22bcp19NFno factor TF: 60-61
2011-05-22JossNF-PM1B1=20000000000
2011-01-08monstNFno factor TF: 58-60
2009-09-24James HintzNF-PM1B1=10000000000, B2=200000000000, E=12
2003-01-16Alex KruppaNFno factor TF: 1-57
2002-12-31-anonymous-NF-PM1B1=4290000000
2002-12-25Alex KruppaNFno factor TF: 1-57
2002-12-25-anonymous-NFno factor TF: 1-57
2002-09-14-anonymous-NF-PM1B1=3221225472, B2=4290000000, E=48
2002-08-03-anonymous-NF-PM1B1=2147483648, B2=4290000000, E=48
2001-06-03-anonymous-NF-PM1B1=3000000000, B2=4290000000
2001-06-03-anonymous-NF-PM1B1=43000000, B2=4290000000
2001-02-11-anonymous-NF-PM1B1=1000000, B2=100000000
2000-08-01-anonymous-NFno factor TF: 1-56
2000-01-25-anonymous-NFno factor TF: 54-55
1999-12-15-anonymous-NFno factor TF: 53-54
1999-09-22-anonymous-NFno factor TF: 52-53
1999-09-14-anonymous-NFno factor TF: 50-51
1998-07-05-anonymous-NFno factor TF: 50-52