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
1837489Factored
FactorDigitsBitsDate
167542247031134.0old
25437572638991991651.22014-06-19 11:32:56
249203440602883022656472999692994.32020-05-27 13:41:12
ECM
DigitsB1Curves
2550000280 / 280
30250000135 / 640
Estimated T-Level: 26.1
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-04Oliver KruseBF7DFBDB968D35AA2013
Verified (Factored)2017-11-06kkmrkkblmbrbkBF7DFBDB968D35AA277707313
Verified2020-05-27ATH2E22285C888F9145330113153
Verified2020-06-06oodaira2E22285C888F91453145910953
History
DateUserTypeResult
2020-06-06oodairaC-PRP
M1837489/16754224703/2543757263899199/24920344060288302265647299969 : 2E22285C888F9145
PRP: Verified
PRP without proof (not generated)
2020-05-27ATHC-PRP
M1837489/16754224703/2543757263899199/24920344060288302265647299969 : 2E22285C888F9145
PRP: Verified
PRP without proof (not generated)
2020-05-27nordiF-ECM
Factor: 24920344060288302265647299969 / (ECM curve 3, B1=50000, B2=5000000, Sigma=2189915616914162)
2017-11-06kkmrkkblmbrbkC-PRP
M1837489/16754224703/2543757263899199 : BF7DFBDB968D35AA
PRP: Verified
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1837489/16754224703/2543757263899199 : BF7DFBDB968D35AA
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2014-06-19TJAOIF
Factor: 2543757263899199