8 402 399 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
873849497	9	29.7	old
111264567559	12	36.7	2008-09-08 04:32:24

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-23	storm5510	18672DDFA9BDA5E7	2	6275683	5	3
Verified	PRP without proof (not generated)	2020-05-19	Luigi Morelli	18672DDFA9BDA5E7	2	4203727	5	3

History

Date	User	Type	Result
2024-05-12	Stef42	NF-PM1	B1=1025000, B2=2213224650
2020-05-19	Luigi Morelli	C-PRP	M8402399/873849497/111264567559 : 18672DDFA9BDA5E7
2018-10-23	storm5510	C-PRP	M8402399/873849497/111264567559 : 18672DDFA9BDA5E7
2008-09-08	Will Edgington	F	Factor: 111264567559

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