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
180473Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
155928673927.2old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000258 / 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 KruseEE6E0B49E08E27421013
Verified2017-10-12kkmrkkblmbrbkEE6E0B49E08E2742114206213
Verified2020-04-17Oliver Kruse7AC2F7B9393EFD92116265653
Verified2023-08-24USAFSS7AC2F7B9393EFD9217358553
History
DateUserTypeResult
2023-08-24RareSaturnCERT
PRP Certification
Proof certified good
2023-08-24USAFSSC-PRP
M180473/155928673 : 7AC2F7B9393EFD92
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-17Oliver KruseC-PRP
M180473/155928673 : 7AC2F7B9393EFD92
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M180473/155928673 : EE6E0B49E08E2742
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M180473/155928673 : EE6E0B49E08E2742
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M180473/155928673 : EE6E0B49E08E2742
PRP without proof (not generated)
2017-01-13kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12