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
2056081Factored
FactorDigitsBitsDate
224153950631134.4old
4125325105375621037431272478.42022-12-13 19:00:13
6154541837790042701119032479.02021-07-29 23:20:05
ECM
DigitsB1Curves
2550000280 / 280
30250000151 / 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 Kruse1D4D991FEF5DA0E41013
Verified (Factored)2017-11-15kkmrkkblmbrbk1D4D991FEF5DA0E4144377713
Verified (Factored)2021-07-30SRJ28779110B2E0206CBC182132262753
Verified2022-12-14/r/counting9110B2E0206CBC183131635853
Verified2022-12-14Nesowa9110B2E0206CBC183163390453
History
DateUserTypeResult
2022-12-14curtiscCERT
PRP Certification
Proof certified good
2022-12-14NesowaC-PRP
M2056081/22415395063/615454183779004270111903/412532510537562103743127 : 9110B2E0206CBC18
PRP proof power = 7
PRP: Verified
Proof certified good
2022-12-14Brian Cudiamat - uhyeahwhateverCERT
PRP Certification
Proof certified good
2022-12-14/r/countingC-PRP
M2056081/22415395063/412532510537562103743127/615454183779004270111903 : 9110B2E0206CBC18
PRP proof power = 7
PRP: Verified
Proof certified good
2022-12-13NesowaF-ECM
Factor: 412532510537562103743127 / (ECM curve 6, B1=50000, B2=27023535, Sigma=7636769619172645)
2021-07-30curtiscCERT
PRP Certification
Proof certified good
2021-07-30SRJ2877C-PRP
M2056081/22415395063/615454183779004270111903 : 9110B2E0206CBC18
PRP proof power = 7
PRP: Verified (Factored)
Proof certified good
2021-07-29_p95holder_F-ECM
Factor: 615454183779004270111903 / (ECM curve 5, B1=50000, B2=5000000)
2017-11-15kkmrkkblmbrbkC-PRP
M2056081/22415395063 : 1D4D991FEF5DA0E4
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2056081/22415395063 : 1D4D991FEF5DA0E4
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12