8 323 619 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁸

Factored

Factor	Digits	Bits	Date
615947807	9	29.2	old
77259831559	11	36.2	2008-09-08 04:30:28

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-15	Oliver Kruse	EC9AA5C0B474934A	2	1697064	5	3
Verified	PRP without proof (not generated)	2020-04-18	ATH	EC9AA5C0B474934A	2	945279	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1375000, B2=2661870120
2020-04-18	ATH	C-PRP	M8323619/615947807/77259831559 : EC9AA5C0B474934A
2018-10-15	Oliver Kruse	C-PRP	M8323619/615947807/77259831559 : EC9AA5C0B474934A
2008-09-08	Will Edgington	F	Factor: 77259831559

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