8 321 161 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
599123593	9	29.2	old
1656275755486631	16	50.6	2014-06-03 11:31:06

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-09	_p95holder_	1E6D3259006676D3	2	1219796	5	3
Verified	PRP without proof (not generated)	2020-04-18	marssystems	1E6D3259006676D3	2	7118522	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1367000, B2=2725257990
2020-04-18	marssystems	C-PRP	M8321161/599123593/1656275755486631 : 1E6D3259006676D3
2018-10-09	_p95holder_	C-PRP	M8321161/599123593/1656275755486631 : 1E6D3259006676D3
2014-06-03	TJAOI	F	Factor: 1656275755486631

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