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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MnStatusDetails
3288023Factored
FactorDigitsBitsDate
18939012491030.8old
6677562855239031549.22014-04-25 10:33:57
98296963936047804311963.12016-12-12 12:31:44
2804346364261342954092167.92018-09-26 01:58:32
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-11-03Oliver Kruse373D5223BD0753063270953753
Verified (Factored)2017-12-14kkmrkkblmbrbk373D5223BD0753063189168553
Verified2018-09-26Oliver Kruse373D5223BD0753064100070953
History
DateUserTypeResult
2023-10-18James HeinrichF
Factor: 280434636426134295409 / TF: 67-68
2022-07-25JossNF-PM1
B1=3288023, B2=3334803780
2022-03-21JossNF-PM1
B1=3288023, B2=1021782300
2021-11-02JossNF-PM1
B1=3288023, B2=131520920, E=12
2021-09-16JossNF-PM1
B1=3288023, B2=13152092, E=12
2021-09-11JossNF-PM1
B1=3288023
2021-08-29JossNF
no factor from 2^68 to 2^69
2021-01-28JossNF
no factor from 2^66 to 2^67
2021-01-20JossNF
no factor from 2^65 to 2^66
2021-01-02JossNF
no factor from 2^64 to 2^65
2020-07-02JossNF-PM1
B1=350720, B2=6576046, E=6
2018-09-26Oliver KruseC-PRP
M3288023/1893901249/667756285523903/9829696393604780431/280434636426134295409 : 373D5223BD075306
PRP: Verified
PRP without proof (not generated)
2018-09-26ATHF-ECM
Factor: 280434636426134295409 / (ECM curve 3, B1=50000, B2=5000000)
2017-12-14kkmrkkblmbrbkC-PRP
M3288023/1893901249/667756285523903/9829696393604780431 : 373D5223BD075306
PRP: Verified
PRP without proof (not generated)
2017-11-03Oliver KruseC-PRP
M3288023/1893901249/667756285523903/9829696393604780431 : 373D5223BD075306
PRP: Verified
PRP without proof (not generated)
2016-12-12TJAOIF
Factor: 9829696393604780431 / TF: 63-64
2014-04-25TJAOIF
Factor: 667756285523903