2 144 033 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
77149276990497080971001	23	76.0	2011-01-21 06:51:10

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	167 / 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)		Bj”rn Edstam	DA14437BAA2D7757	0
Verified (Factored)	1999-02-14	Patrick Fossano	DA14437BAA2D7757	0
Verified (Factored)	1999-05-16	Volker Dilg-Gruschinski	DA14437BAA2D7757	887387

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-08	Oliver Kruse	08EB8D89C31441F0	1	0	1	3
Verified	2017-11-18	kkmrkkblmbrbk	08EB8D89C31441F0	1	1058307	1	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-11-18	kkmrkkblmbrbk	C-PRP	M2144033/77149276990497080971001 : 08EB8D89C31441F0 PRP: Verified PRP without proof (not generated)
2017-10-08	Oliver Kruse	C-PRP	M2144033/77149276990497080971001 : 08EB8D89C31441F0 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2011-01-21	James Heinrich	F-PM1	Factor: 77149276990497080971001
2011-01-13	Joss	NF-PM1	B1=50000
2010-12-30	Joss	NF-PM1	B1=30000
2010-11-03	Joss	NF-PM1	B1=20000
2009-01-06	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-04	Sturle Sunde	NF	no factor from 2^60 to 2^61