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
2047091Factored
FactorDigitsBitsDate
4094183722.0old
456770859591150273029932375.32024-02-19 12:52:48
43094429266592810344070412581.82022-02-12 02:56:57
ECM
DigitsB1Curves
2550000280 / 280
30250000158 / 640
Estimated T-Level: 26.2
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-06Oliver Kruse02A78C42E3578CBE1013
Verified (Factored)2017-11-15kkmrkkblmbrbk02A78C42E3578CBE136560313
Verified (Factored)2022-02-13_p95holder_B7C98CB28E1AF4A325767153
Verified (Factored)2022-02-17ATHB7C98CB28E1AF4A32105741753
Verified2024-02-19Naegi MakotoB7C98CB28E1AF4A3352810553
History
DateUserTypeResult
2024-02-19Linear_PetraCERT
PRP Certification
Proof certified good
2024-02-19Naegi MakotoC-PRP
M2047091/4094183/45677085959115027302993/4309442926659281034407041 : B7C98CB28E1AF4A3
PRP proof power = 7
PRP: Verified
Proof certified good
2024-02-19TJAOIF-ECM
Factor: 45677085959115027302993 / (ECM curve 3, B1=250000, B2=210204225, Sigma=1174877243898898)
2022-02-17Jon PaceCERT
PRP Certification
Proof certified good
2022-02-17ATHC-PRP
M2047091/4094183/4309442926659281034407041 : B7C98CB28E1AF4A3
PRP proof power = 7
PRP: Verified (Factored)
Proof certified good
2022-02-13_p95holder_C-PRP
M2047091/4094183/4309442926659281034407041 : B7C98CB28E1AF4A3
PRP: Verified (Factored)
PRP without proof (not generated)
2022-02-12_p95holder_F-ECM
Factor: 4309442926659281034407041 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-15kkmrkkblmbrbkC-PRP
M2047091/4094183 : 02A78C42E3578CBE
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2047091/4094183 : 02A78C42E3578CBE
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12