7 854 023 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
15708047	8	23.9	old
38440777797995473	17	55.1	2015-01-05 12:09:16

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-05-22	_p95holder_	F8F776BF2B8800BC	2	3683875	5	3
Verified	2019-10-25	ATH	F8F776BF2B8800BC	2	4345165	5	3

History

Date	User	Type	Result
2024-01-31	Stef42	NF-PM1	B1=950000, B2=1968826860
2019-10-25	ATH	C-PRP	M7854023/15708047/38440777797995473 : F8F776BF2B8800BC PRP: Verified PRP without proof (not generated)
2018-05-22	_p95holder_	C-PRP	M7854023/15708047/38440777797995473 : F8F776BF2B8800BC PRP: Verified PRP without proof (not generated)
2015-01-05	TJAOI	F	Factor: 38440777797995473 / TF: 55-56