10 257 493 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
43619477338749161	17	55.3	old
99192696172478703673	20	66.4	2020-03-19 11:41:25

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2020-03-20	Niels_Mache_Nextcloud	DE21CED6214901F6	2	7878239	5	3
Factored	PRP without proof (not generated)	2020-05-08	Luigi Morelli	DE21CED6214901F6	1	4029288	5	3
Verified	Certified Good	2021-02-14	XZT	DE21CED6214901F6	2	1609067	5	3

History

Date	User	Type	Result
2025-12-18	Sid & Andy	NF-PM1	B1=1600000, B2=2468870250
2022-04-15	LordJulius	NF	no factor TF: 67-68
2021-02-15	curtisc	CERT	Proof certified good
2021-02-14	XZT	C-PRP	Proof Certified Good Proof Power: 8
2020-05-08	Luigi Morelli	C-PRP	M10257493/43619477338749161 : DE21CED6214901F6
2020-03-20	Niels_Mache_Nextcloud	C-PRP	M10257493/43619477338749161/99192696172478703673 : DE21CED6214901F6
2020-03-19	TJAOI	F	Factor: 99192696172478703673
1999-08-31	-anonymous-	F	Factor: 43619477338749161