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

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Exponent Range:










MnStatusDetails
10321Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
61927515.9old
14781696780291026908452727072263133106.92010-02-19 11:44:01
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001282 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseFF24742A9E93CBCC2013
Verified2017-10-12kkmrkkblmbrbkFF24742A9E93CBCC2462213
Verified2020-04-17Oliver Kruse9773F2B5F929F5A32528353
Verified2024-07-01kkmrkkblmbrbk9773F2B5F929F5A32657953
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M10321/147816967802910269084527270722631/61927 : 9773F2B5F929F5A3
PRP: Verified
PRP without proof (small exponent)
2022-10-22-Anonymous-NF-PM1
B1=100000000000, B2=120170262311539440
2021-08-01ViliamFNF-PM1
B1=250000000, B2=40250000000
2020-04-17Oliver KruseC-PRP
M10321/61927/147816967802910269084527270722631 : 9773F2B5F929F5A3
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10321/61927/147816967802910269084527270722631 : FF24742A9E93CBCC
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10321/61927/147816967802910269084527270722631 : FF24742A9E93CBCC
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10321/61927/147816967802910269084527270722631 : FF24742A9E93CBCC
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2010-02-19Matthias WurtingerF-ECM
Factor: 147816967802910269084527270722631