8 321 141 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
5991221521	10	32.5	old
1088871226697	13	40.0	2008-09-08 04:30:16

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-10	Oliver Kruse	3A2B7437F83D2EB3	2	7540080	5	3
Verified	PRP without proof (not generated)	2020-04-20	arnaud	3A2B7437F83D2EB3	2	394617	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1375000, B2=2725257990
2020-04-20	arnaud	C-PRP	M8321141/5991221521/1088871226697 : 3A2B7437F83D2EB3
2018-10-10	Oliver Kruse	C-PRP	M8321141/5991221521/1088871226697 : 3A2B7437F83D2EB3
2008-09-08	Will Edgington	F	Factor: 1088871226697

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