617 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 3 known prime factors. Cofactor is PRP (Probable-Prime).

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
59233	5	15.9	old
68954123297	11	36.0	old
157751978115225385495647532421006478127229405644601	51	166.8	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Factored	No proof (small exponent)	2024-09-06	George Woltman	PRP_PRP_PRP_PRP_	3	0	1	3

History

Date	User	Type	Result
2024-09-06	George Woltman	P-PRP	M617/59233/68954123297/157751978115225385495647532421006478127229405644601 PRP Cofactor
2001-11-10	-anonymous-	F	Factor: 4084359585251201
2001-03-11	-anonymous-	F	Factor: 4084359585251201
1999-03-15	-anonymous-	F	Factor: 4084359585251201

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