7 999 811 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
15999623	8	23.9	old
447989417	9	28.7	2008-09-08 03:43:42
214842924217	12	37.6	2008-09-08 03:43:42

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-07-04	_p95holder_	8325E896D920E568	3	4232911	5	3
Verified	2019-06-14	timbit	8325E896D920E568	3	1900374	5	3

History

Date	User	Type	Result
2024-02-23	Stef42	NF-PM1	B1=2500000, B2=5550040860
2019-06-14	timbit	C-PRP	M7999811/15999623/447989417/214842924217 : 8325E896D920E568 PRP: Verified PRP without proof (not generated)
2018-07-04	_p95holder_	C-PRP	M7999811/15999623/447989417/214842924217 : 8325E896D920E568 PRP: Verified PRP without proof (not generated)
2008-09-08	Will Edgington	F	Factor: 214842924217
2008-09-08	Will Edgington	F	Factor: 447989417