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
23509Factored
FactorDigitsBitsDate
30507452512331341.5old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
403000000802 / 4588
Estimated T-Level: 35.9
TF below 2^114 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseB76AB99AAD74B6D81013
Verified2017-10-12kkmrkkblmbrbkB76AB99AAD74B6D811849313
Unverified2020-04-17Oliver Kruse14F407732E24B4__1784253
History
DateUserTypeResult
2024-02-19nordiNF-PM1
B1=8000000000, B2=2427250412837250
2023-04-11nordiNF-PM1
B1=8000000000
2020-04-17Oliver KruseC-PRP
M23509/3050745251233 : 14F407732E24B4__
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M23509/3050745251233 : B76AB99AAD74B6D8
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M23509/3050745251233 : B76AB99AAD74B6D8
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M23509/3050745251233 : B76AB99AAD74B6D8
PRP without proof (not generated)
2016-11-28kkmrkkblmbrbkNF-PM1
B1=500000000, B2=10000000000, E=12