Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
9479Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
18959514.2old
48532481825.5old
92225445364791343.1old
54568930402781823812552817032665340963339128.72009-09-27 10:14:59
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000006824 / 16550
Estimated T-Level: 47.1
TF below 2^151 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseA45CBB4F0B7B3C4D4013
Verified2017-10-02kkmrkkblmbrbkA45CBB4F0B7B3C4D4013
Verified2017-12-07ATHA45CBB4F0B7B3C4D47213
Verified2020-04-17Oliver Kruse78D5C560D54E4CC34634353
Verified (Factored)2022-05-12Jorge Coveiro78D5C560D54E4CC31352053
Verified2024-07-01kkmrkkblmbrbk78D5C560D54E4CC34230253
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M9479/18959/48532481/545689304027818238125528170326653409633/9222544536479 : 78D5C560D54E4CC3
PRP: Verified
PRP without proof (small exponent)
2023-06-29JacobZNF-PM1
B1=61000000000, B2=254995794420917550
2022-11-24Kevin_9611NF-PM1
B1=1000000000, B2=100149831201420
2022-05-12Jorge CoveiroC-PRP
M9479/18959 : 78D5C560D54E4CC3
PRP: Verified
PRP without proof (small exponent)
2021-12-16Lisander ViaeneNF-PM1
B1=100000000
2020-04-17Oliver KruseC-PRP
M9479/18959/48532481/9222544536479/545689304027818238125528170326653409633 : 78D5C560D54E4CC3
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M9479/18959/48532481/9222544536479/545689304027818238125528170326653409633 : A45CBB4F0B7B3C4D
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M9479/18959/48532481/9222544536479/545689304027818238125528170326653409633 : A45CBB4F0B7B3C4D
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M9479/known_factors : A45CBB4F0B7B3C4D
PRP without proof (not generated)
2009-09-27Rob_DeeF-ECM
Factor: 545689304027818238125528170326653409633