Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
1820527Factored
FactorDigitsBitsDate
105590567926.7old
5457211735211239.02008-07-15 07:47:01
155255284169878731753.82014-10-12 11:52:23
137180203033448323372063.62017-03-16 12:13:10
6755456417479576793418232479.22019-10-10 06:19:32
ECM
DigitsB1Curves
2550000280 / 280
30250000106 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-05Oliver Kruse476478C74AE040214013
Verified (Factored)2017-11-11kkmrkkblmbrbk476478C74AE040214129575313
Verified2019-10-10mnd9AF06B49DFC120CA45153524153
Verified2019-10-14Chang Chia-TcheAF06B49DFC120CA45104426653
History
DateUserTypeResult
2022-03-11LordJuliusNF
no factor from 2^66 to 2^67
2022-03-11LordJuliusNF
no factor from 2^65 to 2^66
2022-03-11LordJuliusNF
no factor from 2^64 to 2^65
2022-03-11LordJuliusNF
no factor from 2^62 to 2^63
2022-03-11LordJuliusNF
no factor from 2^61 to 2^62
2019-10-14Chang Chia-TcheC-PRP
M1820527/105590567/545721173521/15525528416987873/13718020303344832337/675545641747957679341823 : AF06B49DFC120CA4
PRP: Verified
PRP without proof (not generated)
2019-10-10mnd9C-PRP
M1820527/105590567/545721173521/15525528416987873/13718020303344832337/675545641747957679341823 : AF06B49DFC120CA4
PRP: Verified
PRP without proof (not generated)
2019-10-10Chang Chia-TcheF-ECM
Factor: 675545641747957679341823 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-11kkmrkkblmbrbkC-PRP
M1820527/105590567/545721173521/15525528416987873/13718020303344832337 : 476478C74AE04021
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1820527/105590567/545721173521/15525528416987873/13718020303344832337 : 476478C74AE04021
PRP: Verified
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1820527/105590567/545721173521/15525528416987873/13718020303344832337 : 476478C74AE04021
PRP without proof (not generated)
2017-03-16TJAOIF
Factor: 13718020303344832337 / TF: 63-64
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2014-10-12TJAOIF
Factor: 15525528416987873 / TF: 53-54
2008-07-15J FeitsmaF
Factor: 545721173521