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
2270171Factored
FactorDigitsBitsDate
75188063531032.8old
5559947908721322170712168.92022-11-30 09:20:56
ECM
DigitsB1Curves
255000083 / 280
Estimated T-Level: 21.5 ⓘ
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-11Oliver Kruse62251661ED54A5F81013
Verified (Factored)2017-11-21kkmrkkblmbrbk62251661ED54A5F81219613413
Verified2022-12-05mrh117468AB0F57ABC22178003553
History
DateUserTypeResult
2022-12-05theojkCERT
PRP Certification
Proof certified good
2022-12-05mrhC-PRP
M2270171/7518806353/555994790872132217071 : 117468AB0F57ABC2
PRP proof power = 7
PRP: Verified
Proof certified good
2022-11-30_p95holder_F-ECM
Factor: 555994790872132217071 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-21kkmrkkblmbrbkC-PRP
M2270171/7518806353 : 62251661ED54A5F8
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2270171/7518806353 : 62251661ED54A5F8
PRP: Verified (Factored)
PRP without proof (not generated)
2016-04-27alpertronNF-PM1
B1=500000, B2=15000000, E=12