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
4804439Factored
FactorDigitsBitsDate
576532681929.1old
18833400891030.82008-09-08 00:13:50
45138045102086718231962.02016-06-16 15:46:46
675399916297675863292065.92019-06-03 02:58:03
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0
TF below 2^61 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-11-20Oliver KruseE89F4859F42110193180408553
Verified (Factored)2018-01-06kkmrkkblmbrbkE89F4859F42110193292812753
Verified2019-06-04Daniil TsarkovE89F4859F42110194361251553
History
DateUserTypeResult
2022-09-29USAFSSNF-PM1
B1=260000, B2=167750730
2019-06-04Daniil TsarkovC-PRP
M4804439/576532681/1883340089/4513804510208671823/67539991629767586329 : E89F4859F4211019
PRP: Verified
PRP without proof (not generated)
2019-06-03MarkSF-ECM
Factor: 67539991629767586329 / (ECM curve 1, B1=50000, B2=5000000)
2018-01-06kkmrkkblmbrbkC-PRP
M4804439/576532681/1883340089/4513804510208671823 : E89F4859F4211019
PRP: Verified
PRP without proof (not generated)
2017-11-20Oliver KruseC-PRP
M4804439/576532681/1883340089/4513804510208671823 : E89F4859F4211019
PRP: Verified
PRP without proof (not generated)
2016-06-16TJAOIF
Factor: 4513804510208671823 / TF: 61-62
2008-09-08Will EdgingtonF
Factor: 1883340089