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
226063Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
2260631721.1old
43409666192331342.02008-07-21 09:14:21
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000251 / 1566
Estimated T-Level: 30.8
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse1294F7097687240D2013
Verified2017-10-12Oliver Kruse1294F7097687240D214138213
Verified2017-11-06kkmrkkblmbrbk1294F7097687240D21094613
Verified2020-04-17Oliver KruseEBEB5A888E0F4F2E212898353
Verified2024-02-03Wentao HuangEBEB5A888E0F4F2E221907453
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M226063/2260631/4340966619233 : EBEB5A888E0F4F2E
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-15Oliver KruseNF-PM1
B1=30000000, B2=10070832992220
2021-06-15Oliver KruseNF-PM1
B1=30000000, B2=3000000000
2020-04-17Oliver KruseC-PRP
M226063/2260631/4340966619233 : EBEB5A888E0F4F2E
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M226063/2260631/4340966619233 : 1294F7097687240D
PRP: Verified
PRP without proof (small exponent)
2017-10-12Oliver KruseC-PRP
M226063/2260631/4340966619233 : 1294F7097687240D
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M226063/2260631/4340966619233 : 1294F7097687240D
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M226063/2260631/4340966619233 : 1294F7097687240D
PRP without proof (not generated)
2008-07-21J FeitsmaF
Factor: 4340966619233