8 568 773 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
51412639	8	25.6	old
478874447879	12	38.8	2008-09-08 04:35:43

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-11-23	rucio	74FBD404683789D9	2	1684508	5	3
Verified	PRP without proof (not generated)	2020-07-15	storm5510	74FBD404683789D9	2	4606400	5	3

History

Date	User	Type	Result
2024-05-22	Stef42	NF-PM1	B1=1115000, B2=1240880550
2020-07-15	storm5510	C-PRP	M8568773/51412639/478874447879 : 74FBD404683789D9
2018-11-23	rucio	C-PRP	M8568773/51412639/478874447879 : 74FBD404683789D9
2008-09-08	Will Edgington	F	Factor: 478874447879

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