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
307691Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
159099045358491191753.8old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000166 / 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 Kruse367357848F1462991013
Verified2017-10-12Oliver Kruse367357848F146299112476613
Verified2017-12-11ATH367357848F14629911035013
Verified2020-04-18Oliver KruseB57CE402AA68AE23126674653
Verified2024-08-25kkmrkkblmbrbkB57CE402AA68AE23123605753
History
DateUserTypeResult
2024-08-25PoaoCERT
PRP Certification
Proof certified good
2024-08-25kkmrkkblmbrbkC-PRP
M307691/15909904535849119 : B57CE402AA68AE23
PRP proof power = 5
PRP: Verified
Proof certified good
2024-02-24Denial140NF-PM1
B1=10000000, B2=206662045590
2024-02-22Denial140NF-PM1
B1=10000000
2023-03-18Denial140NF-PM1
B1=1000000, B2=65871826020
2022-02-06Lisander ViaeneNF-PM1
B1=50000
2020-04-18Oliver KruseC-PRP
M307691/15909904535849119 : B57CE402AA68AE23
PRP: Verified
PRP without proof (small exponent)
2017-12-11ATHC-PRP
M307691/15909904535849119 : 367357848F146299
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M307691/15909904535849119 : 367357848F146299
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M307691/15909904535849119 : 367357848F146299
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M307691/15909904535849119 : 367357848F146299
PRP without proof (not generated)