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
306091Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
10921326891030.0old
602417697111135.82008-07-21 09:16:22
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000167 / 1566
Estimated T-Level: 30.5
TF below 2^96 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseCCB3DB6AC5789B072013
Verified2017-10-12Oliver KruseCCB3DB6AC5789B07212811013
Verified2017-12-11ATHCCB3DB6AC5789B07219190713
Verified2020-04-18Oliver Kruse1CF8E1D735DC26EE229839953
Verified2024-08-25kkmrkkblmbrbk1CF8E1D735DC26EE212354553
History
DateUserTypeResult
2024-08-25Luke DurantCERT
PRP Certification
Proof certified good
2024-08-25kkmrkkblmbrbkC-PRP
M306091/1092132689/60241769711 : 1CF8E1D735DC26EE
PRP proof power = 5
PRP: Verified
Proof certified good
2024-02-23Denial140NF-PM1
B1=10000000, B2=206662045590
2024-02-22Denial140NF-PM1
B1=10000000
2023-03-17Denial140NF-PM1
B1=1000000, B2=65871826020
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M306091/1092132689/60241769711 : 1CF8E1D735DC26EE
PRP: Verified
PRP without proof (small exponent)
2017-12-11ATHC-PRP
M306091/1092132689/60241769711 : CCB3DB6AC5789B07
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M306091/1092132689/60241769711 : CCB3DB6AC5789B07
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M306091/1092132689/60241769711 : CCB3DB6AC5789B07
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M306091/1092132689/60241769711 : CCB3DB6AC5789B07
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 60241769711