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

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MnDetails
8406283
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
130777721510631443.6old
1525222445502463991857.12015-05-22 11:29:46
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2018-10-24storm551076DE0AA227A367082480577753
Verified
PRP without proof (not generated)
2020-05-19ATH76DE0AA227A36708259368353
History
DateUserTypeResult
2024-05-12Stef42NF-PM1B1=1025000, B2=2213224650
2020-05-19ATHC-PRPM8406283/13077772151063/152522244550246399 : 76DE0AA227A36708
2018-10-24storm5510C-PRPM8406283/13077772151063/152522244550246399 : 76DE0AA227A36708
2015-05-22TJAOIFFactor: 152522244550246399