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
12527Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
826783619.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000006035 / 9201
Estimated T-Level: 43.3
TF below 2^139 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse44735CB3457FD7F31013
Verified2017-10-12kkmrkkblmbrbk44735CB3457FD7F3162913
Verified2020-04-17Oliver KruseEA89B6F80CDFAABE1479453
Verified2024-07-01kkmrkkblmbrbkEA89B6F80CDFAABE11016653
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M12527/826783 : EA89B6F80CDFAABE
PRP: Verified
PRP without proof (small exponent)
2023-05-13-Anonymous-NF-PM1
B1=100000000000, B2=120417199046794650
2022-12-05RubiksmathNF-PM1
B1=20000000000, B2=13111711303140450
2022-11-07RubiksmathNF-PM1
B1=10000000000, B2=4205839497940080
2020-04-17Oliver KruseC-PRP
M12527/826783 : EA89B6F80CDFAABE
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M12527/826783 : 44735CB3457FD7F3
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M12527/826783 : 44735CB3457FD7F3
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M12527/826783 : 44735CB3457FD7F3
PRP without proof (not generated)