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
1848551Factored
FactorDigitsBitsDate
3697103721.8old
1672707814251179270217832477.12021-03-21 12:00:23
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-04Oliver Kruse13C6AEAB496E7F4A1013
Verified (Factored)2017-11-06kkmrkkblmbrbk13C6AEAB496E7F4A187754013
Verified2021-03-22Luigi Morelli0205E3C96BD545962102387553
History
DateUserTypeResult
2022-08-28USAFSSNF-PM1
B1=400000, B2=431631816
2022-04-12Lisander ViaeneNF-PM1
B1=500100
2021-03-22curtiscCERT
PRP Certification
Proof certified good
2021-03-22Luigi MorelliC-PRP
M1848551/3697103/167270781425117927021783 : 0205E3C96BD54596
PRP proof power = 7
PRP: Verified
Proof certified good
2021-03-21MarkSF-ECM
Factor: 167270781425117927021783 / (ECM curve 1, B1=50000, B2=5000000, Sigma=4308658602325540)
2017-11-06kkmrkkblmbrbkC-PRP
M1848551/3697103 : 13C6AEAB496E7F4A
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1848551/3697103 : 13C6AEAB496E7F4A
PRP: Verified (Factored)
PRP without proof (not generated)