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
260387Factored
FactorDigitsBitsDate
306215113928.2old
1089588219462126483163102795411126159938123.02022-05-02 17:37:55
ECM
DigitsB1Curves
2550000280 / 280
30250000461 / 640
Estimated T-Level: 28.6
TF below 2^90 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-22Oliver Kruse06F8C6DB0EFCD7401013
Verified (Factored)2017-10-12Oliver Kruse06F8C6DB0EFCD74019107513
Verified (Factored)2017-11-06kkmrkkblmbrbk06F8C6DB0EFCD740119697313
Verified (Factored)2020-04-17Oliver Kruse57F147E65A9A86DD122047653
Verified2022-05-03LordJulius57F147E65A9A86DD27120253
Verified2022-05-03Oliver Kruse57F147E65A9A86DD211029253
P-1 factors
DateFactorB1B2
2022-05-02108958821946212648316310279541112615993000000010035812696910
History
DateUserTypeResult
2022-05-03Nemosoft Unv.CERT
PRP Certification
Proof certified good
2022-05-03PoaoCERT
PRP Certification
Proof certified good
2022-05-03Oliver KruseC-PRP
M260387/306215113/10895882194621264831631027954111261599 : 57F147E65A9A86DD
PRP proof power = 5
PRP: Verified
Proof certified good
2022-05-03LordJuliusC-PRP
M260387/306215113/10895882194621264831631027954111261599 : 57F147E65A9A86DD
PRP proof power = 5
PRP: Verified
Proof certified good
2022-05-02Oliver KruseF-PM1
Factor: 10895882194621264831631027954111261599 / (P-1, B1=30000000, B2=10035812696910)
2021-09-16Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M260387/306215113 : 57F147E65A9A86DD
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M260387/306215113 : 06F8C6DB0EFCD740
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M260387/306215113 : 06F8C6DB0EFCD740
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M260387/306215113 : 06F8C6DB0EFCD740
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M260387/306215113 : 06F8C6DB0EFCD740
PRP without proof (not generated)