Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
3442567Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
135511035409687277932063.62009-12-24 18:25:35
ECM
DigitsB1Curves
25500004 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)John LloydAC06821BEF8AD6240
Verified (Factored)1999-10-29Team love_festAC06821BEF8AD6241167167
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-11-06Oliver KruseBCE85B1389008DA2136119053
Verified2017-12-16kkmrkkblmbrbkBCE85B1389008DA21313900153
History
DateUserTypeResult
2022-08-16JossNF-PM1
B1=3442567, B2=348654180
2022-05-11LordJuliusNF
no factor from 2^66 to 2^67
2022-05-11LordJuliusNF
no factor from 2^65 to 2^66
2022-05-11LordJuliusNF
no factor from 2^64 to 2^65
2022-05-11LordJuliusNF
no factor from 2^62 to 2^63
2022-05-11LordJuliusNF
no factor from 2^1 to 2^62
2021-12-21JossNF-PM1
B1=3442567, B2=112173600
2021-08-04JossNF-PM1
B1=3442567, B2=6885134, E=6
2021-06-11JossNF
no factor from 2^67 to 2^68
2021-06-11JossNF-PM1
B1=3442567
2021-03-17JossNF-PM1
B1=344256, B2=3442567, E=6
2017-12-16kkmrkkblmbrbkC-PRP
M3442567/13551103540968727793 : BCE85B1389008DA2
PRP: Verified
PRP without proof (not generated)
2017-11-06Oliver KruseC-PRP
M3442567/13551103540968727793 : BCE85B1389008DA2
PRP: Verified
PRP without proof (not generated)
2009-12-24S00030F-ECM
Factor: 13551103540968727793
2009-03-21S485122NF
no factor from 2^60 to 2^61