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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
487637Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
114095939876411443.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-26Oliver KruseC2D171DDD2B122131013
Verified2017-09-27Oliver KruseC2D171DDD2B122131013
Verified2017-11-07kkmrkkblmbrbkC2D171DDD2B12213124829213
Verified2020-04-18Oliver Kruse16CB29AEAD226EE4122135853
Verified2024-11-27kkmrkkblmbrbk16CB29AEAD226EE4143501053
History
DateUserTypeResult
2024-11-28XyzzyCERT
PRP Certification
Proof certified good
2024-11-27kkmrkkblmbrbkC-PRP
M487637/11409593987641 : 16CB29AEAD226EE4
PRP proof power = 6
PRP: Verified
Proof certified good
2024-08-22cramsey87NF-PM1
B1=7000000, B2=42834594660
2020-04-18Oliver KruseC-PRP
M487637/11409593987641 : 16CB29AEAD226EE4
PRP: Verified
PRP without proof (small exponent)
2017-11-07kkmrkkblmbrbkC-PRP
M487637/11409593987641 : C2D171DDD2B12213
PRP: Verified
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M487637/11409593987641 : C2D171DDD2B12213
PRP: Verified
PRP without proof (not generated)
2017-09-26Oliver KruseC-PRP
M487637/11409593987641 : C2D171DDD2B12213
PRP: Verified
PRP without proof (not generated)