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
181553Factored
FactorDigitsBitsDate
5446591722.4old
17429089824.12008-07-27 10:49:44
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000190 / 1566
Estimated T-Level: 30.6 ⓘ
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 Kruse229A2D8ECFC46D702013
Verified2017-10-12kkmrkkblmbrbk229A2D8ECFC46D7021993213
Verified2020-04-17Oliver Kruse594A8AAD7F0CE417215165053
Verified2023-08-24USAFSS594A8AAD7F0CE417216832253
History
DateUserTypeResult
2023-08-24curtiscCERT
PRP Certification
Proof certified good
2023-08-24USAFSSC-PRP
M181553/5446591/17429089 : 594A8AAD7F0CE417
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-17Oliver KruseC-PRP
M181553/5446591/17429089 : 594A8AAD7F0CE417
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M181553/5446591/17429089 : 229A2D8ECFC46D70
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M181553/5446591/17429089 : 229A2D8ECFC46D70
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M181553/5446591/17429089 : 229A2D8ECFC46D70
PRP without proof (not generated)
2017-05-23kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-07-27J FeitsmaF
Factor: 17429089