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
153757Factored
FactorDigitsBitsDate
384547738552241114092065.12008-01-13 12:48:15
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000181 / 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 Kruse187A5A346FFB6AB91013
Verified2017-10-11kkmrkkblmbrbk187A5A346FFB6AB912778013
Verified2020-04-17Oliver KruseFAC20AF5221B78AB18926353
Verified2024-02-03Wentao HuangFAC20AF5221B78AB16603753
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M153757/38454773855224111409 : FAC20AF5221B78AB
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-17Oliver KruseC-PRP
M153757/38454773855224111409 : FAC20AF5221B78AB
PRP: Verified
PRP without proof (small exponent)
2017-10-11kkmrkkblmbrbkC-PRP
M153757/38454773855224111409 : 187A5A346FFB6AB9
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M153757/38454773855224111409 : 187A5A346FFB6AB9
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M153757/38454773855224111409 : 187A5A346FFB6AB9
PRP without proof (not generated)
2016-11-24kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-01-13Team_BunduF-ECM
Factor: 38454773855224111409