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

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MnStatusDetails
5417Composite, with 5 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
433361618.7old
3196031721.6old
200515673927.6old
4440796877753733378066972478.6old
7956784954081150267493113115811182399856741135.92020-10-06 19:27:47
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000007908 / 16550
Estimated T-Level: 47.4
TF below 2^152 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-21Oliver KruseE3DBF0C4F1DDAD474013
Verified (Factored)2017-10-02kkmrkkblmbrbkE3DBF0C4F1DDAD474013
Verified (Factored)2017-12-07ATHE3DBF0C4F1DDAD474398113
Verified (Factored)2020-04-17Oliver Kruse1AB21F68EA7A3289412953
Verified2020-10-06megavink1AB21F68EA7A32895501653
History
DateUserTypeResult
2023-07-08-Anonymous-NF-PM1
B1=46000000000, B2=193133848036379250
2022-01-24Ethan O'ConnorNF-PM1
B1=1300000000
2021-08-27Seth_TrNF-PM1
B1=400000000
2021-08-27Seth_TrNF-PM1
B1=100000000
2020-10-06megavinkC-PRP
M5417/433361/3196031/200515673/444079687775373337806697/79567849540811502674931131158111823998567 : 1AB21F68EA7A3289
PRP: Verified
PRP without proof (small exponent)
2020-10-06Ryan PropperF-ECM
Factor: 79567849540811502674931131158111823998567 / (ECM curve 1, B1=110000000, B2=900514153782, Sigma=7171129905315112250)
2020-04-17Oliver KruseC-PRP
M5417/433361/3196031/200515673/444079687775373337806697 : 1AB21F68EA7A3289
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M5417/433361/3196031/200515673/444079687775373337806697 : E3DBF0C4F1DDAD47
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M5417/433361/3196031/200515673/444079687775373337806697 : E3DBF0C4F1DDAD47
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M5417/known_factors : E3DBF0C4F1DDAD47
PRP without proof (not generated)