8 327 191 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
83271911	8	26.3	old
57890631833	11	35.8	2008-09-08 04:30:30

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-10	ATH	158CA679A66B896C	2	7285687	5	3
Verified	PRP without proof (not generated)	2020-04-22	arnaud	158CA679A66B896C	2	1639554	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1375000, B2=2788626750
2020-04-22	arnaud	C-PRP	M8327191/83271911/57890631833 : 158CA679A66B896C
2018-10-10	ATH	C-PRP	M8327191/83271911/57890631833 : 158CA679A66B896C
2008-09-08	Will Edgington	F	Factor: 57890631833

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