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

PrimeNet Exponent Status

Exponent Range:





MnDetails
9547
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
631801367929.2old
104119526581371430792063.2old
5639782865830818600036012478.9old
887006033783964926801889327222019934112.8old
2258579412627841663040070889956591115492139944144.02024-06-22 04:31:37
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000006742 / 16550
Estimated T-Level: 47.0 ⓘ
TF below 2^151 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver KruseAC8347A313641D144013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbkAC8347A313641D144013
Factored
No proof (small exponent)
2017-12-07ATHAC8347A313641D14482913
Factored
No proof (small exponent)
2020-04-17Oliver Kruse3356B088D186EAF64378753
Verified
No proof (small exponent)
2024-06-22nordi3356B088D186EAF65220953
History
DateUserTypeResult
2025-03-30masserNF-PP1Start=135/29, B1=1000000000, B2=999000000000
2024-06-22nordiC-PRPM9547/631801367/10411952658137143079/563978286583081860003601/8870060337839649268018893272220199/22585794126278416630400708899565911154921399 : 3356B088D186EAF6
2024-06-22nordiF-ECMFactor: 22585794126278416630400708899565911154921399 / ECM curve 198, B1=11000000, B2=62026814850, Edwards Sigma=3666184017108647
2023-06-26JacobZNF-PM1B1=60000000000, B2=244568457101868900
2022-02-03ANONYMOUSNF-PM1B1=100000000, B2=30555685210050
2022-02-03-anonymous-NF-PM1B1=50000, B2=15277839797220
2020-04-17Oliver KruseC-PRPM9547/631801367/10411952658137143079/563978286583081860003601/8870060337839649268018893272220199 : 3356B088D186EAF6
2017-12-07ATHC-PRPM9547/631801367/10411952658137143079/563978286583081860003601/8870060337839649268018893272220199 : AC8347A313641D14
2017-10-02kkmrkkblmbrbkC-PRPM9547/631801367/10411952658137143079/563978286583081860003601/8870060337839649268018893272220199 : AC8347A313641D14
2017-09-21Oliver KruseC-PRPM9547/known_factors : AC8347A313641D14