11 972 083 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
211977701599	12	37.6	old
14292943122049	14	43.7	2008-09-08 07:44:18

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-12-12	LaurV	BBDA646D13C95BDA	2	4102272	5	3

History

Date	User	Type	Result
2023-06-13	nordi	NF-PM1	B1=400000, B2=428459850
2021-12-12	Simon Josefsson	CERT	PRP Certification Proof certified good
2021-12-12	LaurV	C-PRP	M11972083/211977701599/14292943122049 : BBDA646D13C95BDA PRP proof power = 8 PRP: Verified Proof certified good
2021-11-21	nordi	NF-PM1	B1=400000, B2=12000000
2021-11-19	nordi	NF-PM1	B1=400000
2008-09-08	Will Edgington	F	Factor: 14292943122049