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

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MnDetails
5436881
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 266
Factored
FactorDigitsBitsDate
32621287825.0old
42123649136571341.92008-09-08 01:35:23
1321583006327031546.92014-02-21 11:26:33
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2017-12-01storm55100D894D79E47C388D3424767453
Verified
PRP without proof (not generated)
2018-03-09kkmrkkblmbrbk0D894D79E47C388D3224143253
History
DateUserTypeResult
2025-05-24Sid & AndyNF-PM1B1=5100000, B2=8563943850
2023-05-11This -Anonymous-NF-PM1B1=50000, B2=1000000
2018-03-09kkmrkkblmbrbkC-PRPM5436881/32621287/4212364913657/132158300632703 : 0D894D79E47C388D
2017-12-01storm5510C-PRPM5436881/32621287/4212364913657/132158300632703 : 0D894D79E47C388D
2014-02-21TJAOIFFactor: 132158300632703
2008-09-08Will EdgingtonFFactor: 4212364913657