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:










MnStatusDetails
16499939Factored
FactorDigitsBitsDate
296998903928.1old
1480682085942971547.12008-09-08 12:33:02
6232959550160056181782836072789.02021-08-09 11:00:54
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-01-26Dobri03DA317C9FEABEA631539402753
History
DateUserTypeResult
2024-02-13nordiNF-PM1
B1=500000, B2=266674590
2024-01-10nordiNF-PM1
B1=500000
2023-01-26Jim DonovanCERT
PRP Certification
Proof certified good
2023-01-26DobriC-PRP
M16499939/296998903/148068208594297/623295955016005618178283607 : 03DA317C9FEABEA6
PRP proof power = 8
PRP: Verified
Proof certified good
2021-08-09ATHF-PP1
Start=2/7, B1=100000, B2=10000000, Factor: 623295955016005618178283607
2008-09-08Will EdgingtonF
Factor: 148068208594297