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
6529Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
731249619.5old
1201337720.2old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001299 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseB918D659AB13502E2013
Verified2017-10-12kkmrkkblmbrbkB918D659AB13502E2630313
Verified2020-04-17Oliver Kruse834D0D2F1F5A4AF62408353
Verified2024-02-03Wentao Huang834D0D2F1F5A4AF62132553
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6529/731249/1201337 : 834D0D2F1F5A4AF6
PRP: Verified
PRP without proof (small exponent)
2023-08-08-Anonymous-NF-PM1
B1=37000000000, B2=148602986684101950
2021-12-17Oliver KruseNF-PM1
B1=1000000000, B2=1006397938886340
2020-04-17Oliver KruseC-PRP
M6529/731249/1201337 : 834D0D2F1F5A4AF6
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M6529/731249/1201337 : B918D659AB13502E
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6529/731249/1201337 : B918D659AB13502E
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6529/731249/1201337 : B918D659AB13502E
PRP without proof (not generated)