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
210127Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
18491177824.1old
32504965884011341.62008-07-21 09:13:57
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000400 / 1566
Estimated T-Level: 31.3
TF below 2^99 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse7C4F53B18761DE882013
Verified2017-09-22Oliver Kruse7C4F53B18761DE882013
Verified2017-11-06kkmrkkblmbrbk7C4F53B18761DE88214243913
Verified2020-04-17Oliver KruseDEEE251FCCA88BEF2298953
Verified2023-08-03USAFSSDEEE251FCCA88BEF216737853
History
DateUserTypeResult
2023-08-03curtiscCERT
PRP Certification
Proof certified good
2023-08-03USAFSSC-PRP
M210127/18491177/3250496588401 : DEEE251FCCA88BEF
PRP proof power = 5
PRP: Verified
Proof certified good
2022-02-17Oliver KruseNF-PM1
B1=30000000, B2=10070832992220
2021-11-28fbaurNF-PP1
Start=6/5, B1=150000000, B2=14250000000
2021-11-27fbaurNF-PP1
Start=2/7, B1=150000000, B2=14400000000
2021-05-16Oliver KruseNF-PM1
B1=30000000, B2=3000000000
2020-04-17Oliver KruseC-PRP
M210127/18491177/3250496588401 : DEEE251FCCA88BEF
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M210127/18491177/3250496588401 : 7C4F53B18761DE88
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M210127/18491177/3250496588401 : 7C4F53B18761DE88
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M210127/18491177/3250496588401 : 7C4F53B18761DE88
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M210127/18491177/3250496588401 : 7C4F53B18761DE88
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 3250496588401