4 664 449 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
173014641209490076273	21	67.2	2018-02-11 15:15:28

ECM

Digits	B1	Curves
25	50000	9 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-10-29	Ville Warsta	3FEE66AABAA17AE3	0
Verified (Factored)	1999-12-15	John Bafford	3FEE66AABAA17AE3	1330145

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-02-13	Daniil Tsarkov	C3467C4EEA4E7FE1	1	2512011	5	3
Verified	2018-02-16	kkmrkkblmbrbk	C3467C4EEA4E7FE1	1	2434382	5	3
Verified	2018-02-16	AdolfNor	C3467C4EEA4E7FE1	1	2581596	5	3

P-1 factors

Date	Factor	B1	B2
2018-02-11	173014641209490076273	1988203	61634303

History

Date	User	Type	Result
2018-02-16	AdolfNor	C-PRP	M4664449/173014641209490076273 : C3467C4EEA4E7FE1 PRP: Verified PRP without proof (not generated)
2018-02-16	kkmrkkblmbrbk	C-PRP	M4664449/173014641209490076273 : C3467C4EEA4E7FE1 PRP: Verified PRP without proof (not generated)
2018-02-13	Daniil Tsarkov	C-PRP	M4664449/173014641209490076273 : C3467C4EEA4E7FE1 PRP: Verified PRP without proof (not generated)
2018-02-11	Ismo Laitela	F-PM1	Factor: 173014641209490076273 / (P-1, B1=1988203, B2=61634303, E=12)
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-07-08	snme2pm1	NF	no factor from 2^65 to 2^66
2015-02-10	monst	NF	no factor from 2^64 to 2^65
2015-02-09	Jayder	NF	no factor from 2^63 to 2^64
2012-02-16	Squeeky_Squirrel	NF-PM1	B1=110000, B2=2090000, E=6
2011-12-11	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-07-14	markr	NF	no factor from 2^61 to 2^62
2009-08-18	Carsten Kossendey	NF-PM1	B1=25000, B2=381250