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

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Exponent Range:










MnStatusDetails
10547519Factored
FactorDigitsBitsDate
433567197118478570809958974572995.12022-01-29 02:48:26
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)2000-09-23Neil Smeby341E804551F17A945300281
Verified (Factored)2004-07-13Shane Sanford341E804551F17A944540634
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-02-04Poao7C4EB2C05D4F64FA1108777053
P-1 factors
DateFactorB1B2
2022-01-2943356719711847857080995897457498000222998490
History
DateUserTypeResult
2022-02-04skippydCERT
PRP Certification
Proof certified good
2022-02-04PoaoC-PRP
M10547519/43356719711847857080995897457 : 7C4EB2C05D4F64FA
PRP proof power = 8
PRP: Verified
Proof certified good
2022-01-29Zhang RuichongF-PM1
Factor: 43356719711847857080995897457 / (P-1, B1=498000, B2=222998490)
2021-12-31-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-31SRBaseNF
no factor from 2^71 to 2^72
2021-08-12SRBaseNF
no factor from 2^70 to 2^71
2020-08-16ViliamFNF
no factor from 2^69 to 2^70
2017-12-12ramgeisNF
no factor from 2^68 to 2^69
2017-12-12ramgeisNF
no factor from 2^67 to 2^68
2015-11-14VictordeHollanderNF
no factor from 2^66 to 2^67
2015-05-07ThaNF
no factor from 2^65 to 2^66
2013-12-19lycornNF
no factor from 2^64 to 2^65