2 149 517 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
344181832752938881	18	58.3	old
470162630552608977631969	24	78.6	2024-12-23 08:42:29
157155806005373884743597041	27	87.0	2024-12-23 08:42:29

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	165 / 640

Estimated T-Level: 26.3 ⓘ

TF below 2^82 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Michael Carpenter	51ECE0B9D8B5E307	0
Verified (Factored)	1999-02-14	Nick Hilliard	51ECE0B9D8B5E307	1493003

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-08	Oliver Kruse	6BAA431C937FFF62	1	0	1	3
Verified (Factored)	2017-11-18	kkmrkkblmbrbk	6BAA431C937FFF62	1	1054600	1	3
Verified	2024-12-29	chevron	53973E7A1AC756FB	3	1246584	5	3

History

Date	User	Type	Result
2024-12-29	EthanD	CERT	PRP Certification Proof certified good
2024-12-29	chevron	C-PRP	M2149517/344181832752938881/470162630552608977631969/157155806005373884743597041 : 53973E7A1AC756FB PRP proof power = 7 PRP: Verified Proof certified good
2024-12-23	TJAOI	F-ECM	Factor: 157155806005373884743597041 / (ECM curve 1, B1=250000, B2=251325195, Edwards Sigma=5734643959287662)
2024-12-23	TJAOI	F-ECM	Factor: 470162630552608977631969 / (ECM curve 23, B1=250000, B2=251325195, Edwards Sigma=6539554097050985)
2017-11-18	kkmrkkblmbrbk	C-PRP	M2149517/344181832752938881 : 6BAA431C937FFF62 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-08	Oliver Kruse	C-PRP	M2149517/344181832752938881 : 6BAA431C937FFF62 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-20	alpertron	NF-PM1	B1=500000, B2=15000000, E=12