Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
201623Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
115376745531133.4old
52230650664674471652.22014-07-28 13:45:34
ECM
DigitsB1Curves
2550000280 / 280
30250000636 / 640
Estimated T-Level: 30.0
TF below 2^95 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse82694D8ECBC2E11E2013
Verified2017-10-12kkmrkkblmbrbk82694D8ECBC2E11E22648513
Verified2020-04-17Oliver Kruse11DDAF8B1427C62E24042153
Verified2023-08-03USAFSS11DDAF8B1427C62E214401453
History
DateUserTypeResult
2023-08-03curtiscCERT
PRP Certification
Proof certified good
2023-08-03USAFSSC-PRP
M201623/11537674553/5223065066467447 : 11DDAF8B1427C62E
PRP proof power = 5
PRP: Verified
Proof certified good
2022-02-03Oliver KruseNF-PM1
B1=30000000, B2=10196585358960
2022-02-03Oliver KruseNF-PM1
B1=30000000, B2=3241286758710
2021-05-01Oliver KruseNF-PM1
B1=30000000, B2=3000000000
2020-04-17Oliver KruseC-PRP
M201623/11537674553/5223065066467447 : 11DDAF8B1427C62E
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M201623/11537674553/5223065066467447 : 82694D8ECBC2E11E
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M201623/11537674553/5223065066467447 : 82694D8ECBC2E11E
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M201623/11537674553/5223065066467447 : 82694D8ECBC2E11E
PRP without proof (not generated)
2014-07-28TJAOIF
Factor: 5223065066467447