2 192 863 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
46066514274213065231	20	65.3	2011-01-11 18:10:51

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	162 / 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)		Dirk Swanson	738EE6C2AEBD0188	0
Verified (Factored)	1999-02-07	Robert Bernard	738EE6C2AEBD0188	542016

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-09	Oliver Kruse	460B3ACAEB24BD41	1	0	1	3
Verified	2017-11-19	kkmrkkblmbrbk	460B3ACAEB24BD41	1	448455	1	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-11-19	kkmrkkblmbrbk	C-PRP	M2192863/46066514274213065231 : 460B3ACAEB24BD41 PRP: Verified PRP without proof (not generated)
2017-10-09	Oliver Kruse	C-PRP	M2192863/46066514274213065231 : 460B3ACAEB24BD41 PRP: Verified PRP without proof (not generated)
2016-04-03	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2011-01-11	markr	F-PM1	Factor: 46066514274213065231
2010-11-09	Joss	NF-PM1	B1=30000
2010-11-04	Joss	NF-PM1	B1=15000
2009-01-07	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-02	Sturle Sunde	NF	no factor from 2^60 to 2^61