Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
257837Factored
FactorDigitsBitsDate
1547023720.6old
94884017826.52008-07-21 09:15:08
318083193431134.92008-07-21 09:15:08
31108227954713429674648484340507562774339127.92022-04-29 10:02:25
ECM
DigitsB1Curves
2550000280 / 280
30250000465 / 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 Kruse9EE5DC2ECF33EDD33013
Verified (Factored)2017-10-12Oliver Kruse9EE5DC2ECF33EDD3320733913
Verified (Factored)2017-11-06kkmrkkblmbrbk9EE5DC2ECF33EDD332458913
Verified (Factored)2020-04-17Oliver Kruse8E88DFA397B508BA319924153
Verified2022-04-29aperson18E88DFA397B508BA424159353
Verified2022-04-30Oliver Kruse8E88DFA397B508BA422886953
P-1 factors
DateFactorB1B2
2022-04-293110822795471342967464848434050756277433000000010035812696910
History
DateUserTypeResult
2022-04-30PrismCERT
PRP Certification
Proof certified good
2022-04-30Oliver KruseC-PRP
M257837/1547023/31808319343/94884017/311082279547134296746484843405075627743 : 8E88DFA397B508BA
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-30Rob SartainCERT
PRP Certification
Proof certified good
2022-04-29aperson1C-PRP
M257837/1547023/94884017/31808319343/311082279547134296746484843405075627743 : 8E88DFA397B508BA
PRP proof power = 5
PRP: Verified
Proof certified good
2022-04-29Oliver KruseF-PM1
Factor: 311082279547134296746484843405075627743 / (P-1, B1=30000000, B2=10035812696910)
2021-08-18Oliver KruseNF-PM1
B1=30000000, B2=3000000000, E=24
2020-04-17Oliver KruseC-PRP
M257837/1547023/94884017/31808319343 : 8E88DFA397B508BA
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M257837/1547023/94884017/31808319343 : 9EE5DC2ECF33EDD3
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M257837/1547023/31808319343/94884017 : 9EE5DC2ECF33EDD3
PRP: Verified (Factored)
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M257837/1547023/31808319343/94884017 : 9EE5DC2ECF33EDD3
PRP: Verified (Factored)
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M257837/1547023/31808319343/94884017 : 9EE5DC2ECF33EDD3
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 94884017
2008-07-21J FeitsmaF
Factor: 31808319343