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

PrimeNet Exponent Status

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MnStatusDetails
2477Composite, with 1 known prime factor. Cofactor is composite.
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
6026000000088792 / 105362
Estimated T-Level: 59.2
TF below 2^192 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown4D7E0
Verified (Factored)George Woltman0D068856EB13CD7E0
Verified (Factored)Brian J. Beesley0D068856EB13CD7E0
Verified (Factored)2015-04-11MadPoo0D068856EB13CD7E1312
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2019-04-15M8909387C8158951E7DAB8071195553
Verified2019-04-15matzetoniC8158951E7DAB8071118953
Verified2019-04-15artorolloC8158951E7DAB807116953
Verified2020-04-17Oliver KruseC8158951E7DAB8071130753
History
DateUserTypeResult
2020-04-17Oliver KruseC-PRP
M2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807
PRP: Verified
PRP without proof (small exponent)
2019-04-15artorolloC-PRP
M2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807
PRP: Verified
PRP without proof (small exponent)
2019-04-15matzetoniC-PRP
M2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807
PRP: Verified
PRP without proof (small exponent)
2019-04-15M8909387C-PRP
M2477/10747613627429762072011012993421772392325246529786407371177 : C8158951E7DAB807
PRP: Verified
PRP without proof (small exponent)
2019-04-14Ryan PropperF-ECM
Factor: 10747613627429762072011012993421772392325246529786407371177
2018-11-06JossNF-PM1
B1=200000000000, B2=18000000000000, E=12
2018-11-05JossNF-PM1
B1=200000000000, B2=15000000000000, E=12
2018-11-02JossNF-PM1
B1=200000000000, B2=7000000000000, E=12
2018-11-01JossNF-PM1
B1=200000000000, B2=4000000000000, E=12
2018-10-31JossNF-PM1
B1=200000000000, B2=2000000000000, E=12
2018-02-23snme2pm1NF
no factor from 2^63 to 2^64
2016-11-21snme2pm1NF
no factor from 2^62 to 2^63
2016-02-23LaurVNF
no factor from 2^57 to 2^58
2015-06-22treborNF-PM1
B1=100000000000, B2=10000000000000, E=12
2015-05-27snme2pm1NF
no factor from 2^61 to 2^62
2015-04-11MadPooC-LL
0D068856EB13CD7E
2013-06-19BloodIceNF-PM1
B1=120000000000
2012-05-22bcp19NF
no factor from 2^60 to 2^61
2011-05-22JossNF-PM1
B1=20000000000
2011-01-08monstNF
no factor from 2^58 to 2^60
2009-09-24James HintzNF-PM1
B1=10000000000, B2=200000000000, E=12