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
1076827Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
10768271823.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-09-01Kriesel1F6C45C77A4D4B3E013
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-28Oliver KruseD58BC0D42C38E08E1013
Verified2017-10-18kkmrkkblmbrbkD58BC0D42C38E08E165457213
History
DateUserTypeResult
2025-09-01alanmollCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-01KrieselC-PRP
1F6C45C77A4D4B3E
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2024-08-21cramsey87NF-PM1
B1=7000000, B2=58926602280
2017-10-18kkmrkkblmbrbkC-PRP
M1076827/10768271 : D58BC0D42C38E08E
PRP: Verified
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M1076827/10768271 : D58BC0D42C38E08E
PRP: Verified
PRP without proof (not generated)