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

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MnStatusDetails
12294983Factored
FactorDigitsBitsDate
3499680403993083481345746616456221073527141134.72021-12-23 05:15:29
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2001-10-20Steve Spicer541EF030B56BD6A79629608
Verified (Factored)2004-11-03Martial Bernoux541EF030B56BD6A74413361
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-02-26happy521450884728753E9AB01751949353
P-1 factors
DateFactorB1B2
2021-12-233499680403993083481345746616456221073527110000001057550340
History
DateUserTypeResult
2022-02-26lajo321CERT
PRP Certification
Proof certified good
2022-02-26happy5214C-PRP
M12294983/34996804039930834813457466164562210735271 : 50884728753E9AB0
PRP proof power = 8
PRP: Verified
Proof certified good
2021-12-23LuminescenceF-PM1
Factor: 34996804039930834813457466164562210735271 / (P-1, B1=1000000, B2=1057550340)
2021-10-22-Anonymous-NF
no factor from 2^71 to 2^72
2021-08-01ZacHFXNF
no factor from 2^70 to 2^71
2021-08-01ZacHFXNF
no factor from 2^69 to 2^70
2017-11-03ramgeisNF
no factor from 2^68 to 2^69
2015-08-25ThaNF-PM1
B1=300000, B2=6000000, E=6
2015-07-25ThaNF
no factor from 2^67 to 2^68
2015-03-08ThaNF
no factor from 2^66 to 2^67
2013-09-29NesowaNF
no factor from 2^65 to 2^66
2013-08-01lycornNF
no factor from 2^64 to 2^65