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

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MnStatusDetails
1330867Factored
FactorDigitsBitsDate
185968744264964320930632374.02014-02-18 21:57:14
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)George Woltman74D855AF2D45ED5C0
Verified (Factored)Cornelius Caesar74D855AF2D45ED5C0
Verified (Factored)2010-03-17Bruce A Metcalf74D855AF2D45ED5C413860
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-30Oliver Kruse793E6CA98E5FFB291013
Verified2017-10-23kkmrkkblmbrbk793E6CA98E5FFB2914534713
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^58 to 2^60
2017-10-23kkmrkkblmbrbkC-PRP
M1330867/18596874426496432093063 : 793E6CA98E5FFB29
PRP: Verified
PRP without proof (not generated)
2017-09-30Oliver KruseC-PRP
M1330867/18596874426496432093063 : 793E6CA98E5FFB29
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2014-02-18jim f in mnF-ECM
Factor: 18596874426496432093063
2014-02-04Never Odd Or EvenNF
no factor from 2^69 to 2^70
2014-02-04Never Odd Or EvenNF
no factor from 2^68 to 2^69
2014-02-04Never Odd Or EvenNF
no factor from 2^67 to 2^68
2014-02-04Never Odd Or EvenNF
no factor from 2^66 to 2^67
2014-02-04Never Odd Or EvenNF
no factor from 2^65 to 2^66
2013-10-19David CampeauNF
no factor from 2^64 to 2^65
2012-09-01lycornNF
no factor from 2^61 to 2^64
2009-02-15Sturle SundeNF
no factor from 2^60 to 2^61