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

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MnDetails
919
Composite, with 2 known prime factors. Cofactor is PRP (Probable-Prime).
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
335545201972341771754.9old
152651074082705418105275481349108130060432918483467580289744030754735302146132556930363149457078636855455429731914714272974721126415.9old
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2024-09-06George WoltmanPRP_PRP_PRP_PRP_2013
History
DateUserTypeResult
2024-09-06George WoltmanP-PRPM919/33554520197234177/152651074082705418105275481349108130060432918483467580289744030754735302146132556930363149457078636855455429731914714272974721
PRP Cofactor
2009-10-25Carsten KossendeyF-PM1Factor: 33554520197234177
2003-02-09George WoltmanF-PM1Factor: 33554520197234177
2000-08-01-anonymous-F-PM1Factor: 33554520197234177