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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2270171Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
75188063531032.8old
5559947908721322170712168.92022-11-30 09:20:56
1929510789712585696600692127913097.32025-09-19 07:44:42
ECM
DigitsB1Curves
2550000280 / 280
30250000280 / 640
Estimated T-Level: 27.2 ⓘ
TF below 2^85 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
Verified (Factored)2022-12-05mrh117468AB0F57ABC22178003553
Verified2025-09-24Oliver Kruse117468AB0F57ABC2359554853
History
DateUserTypeResult
2025-09-24EarlOfSandwichCERT
PRP Certification
Proof certified good
2025-09-24Oliver KruseC-PRP
M2270171/7518806353/555994790872132217071/192951078971258569660069212791 : 117468AB0F57ABC2
PRP proof power = 7
PRP: Verified
Proof certified good
2025-09-19TJAOIF-ECM
Factor: 192951078971258569660069212791 / (ECM curve 8, B1=250000, B2=254050335, Edwards Sigma=1247414361771697)
2022-12-05theojkCERT
PRP Certification
Proof certified good
2022-12-05mrhC-PRP
M2270171/7518806353/555994790872132217071 : 117468AB0F57ABC2
PRP proof power = 7
PRP: Verified (Factored)
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