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
1867753Factored
FactorDigitsBitsDate
377190327626171445.1old
1232264011389961688892166.72020-08-11 03:40:24
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 KruseD7562738DAF9A7101013
Verified (Factored)2017-11-07kkmrkkblmbrbkD7562738DAF9A7101122302813
Verified2020-08-11M Miller0B3F58C0CB645879230442353
History
DateUserTypeResult
2020-08-12George WoltmanCERT
PRP Certification
Proof certified good
2020-08-11M MillerC-PRP
M1867753/37719032762617/123226401138996168889 : 0B3F58C0CB645879
PRP proof power = 7
PRP: Verified
Proof certified good
2020-08-11_p95holder_F-ECM
Factor: 123226401138996168889 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-07kkmrkkblmbrbkC-PRP
M1867753/37719032762617 : D7562738DAF9A710
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-04Oliver KruseC-PRP
M1867753/37719032762617 : D7562738DAF9A710
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12