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
131933Factored
FactorDigitsBitsDate
3499893975989326071858.32007-10-04 00:07:45
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000205 / 1566
Estimated T-Level: 30.7 ⓘ
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-22Oliver KruseD3B9D982E697DA321013
Verified2017-10-13kkmrkkblmbrbkD3B9D982E697DA3216497013
Verified2020-04-17Oliver KruseC8C88D47E802F29311709653
Verified2024-02-03Wentao HuangC8C88D47E802F29311537853
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M131933/349989397598932607 : C8C88D47E802F293
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-17Oliver KruseC-PRP
M131933/349989397598932607 : C8C88D47E802F293
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M131933/349989397598932607 : D3B9D982E697DA32
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M131933/349989397598932607 : D3B9D982E697DA32
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M131933/349989397598932607 : D3B9D982E697DA32
PRP without proof (not generated)
2017-03-23kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2007-10-04Chad DavisF-ECM
Factor: 349989397598932607