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
8028703Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
3256441936811238.2old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2018-07-17_p95holder_2D3FBD0076807E361381685753
Verified2020-01-05GAN2D3FBD0076807E361545027953
History
DateUserTypeResult
2024-02-24Stef42NF-PM1
B1=944000, B2=1792472220
2020-01-05GANC-PRP
M8028703/325644193681 : 2D3FBD0076807E36
PRP: Verified
PRP without proof (not generated)
2018-07-17_p95holder_C-PRP
M8028703/325644193681 : 2D3FBD0076807E36
PRP: Verified
PRP without proof (not generated)