8 321 783 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
16643567	8	24.0	old
21986150687	11	34.4	2008-09-08 04:30:17

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-09	ATH	6DE2032FF816488F	2	7215258	5	3
Verified	PRP without proof (not generated)	2020-04-18	Igvan28	6DE2032FF816488F	2	2709089	5	3

History

Date	User	Type	Result
2024-06-10	Stef42	NF-PM1	B1=1390000, B2=2852014620
2020-04-18	Igvan28	C-PRP	M8321783/16643567/21986150687 : 6DE2032FF816488F
2018-10-09	ATH	C-PRP	M8321783/16643567/21986150687 : 6DE2032FF816488F
2008-09-08	Will Edgington	F	Factor: 21986150687

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