2 492 443 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
60934618251478393073	20	65.7	2015-07-14 21:20:13

ECM

Digits	B1	Curves
25	50000	66 / 280

Estimated T-Level: 21.2 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Steffen Haugk	841F1E440A7ADF47	0
Verified (Factored)	1999-10-07	Jeremy Pharoah	841F1E440A7ADF47	2271474

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-15	kkmrkkblmbrbk	F5174E460025E5CB	1	7704	5	3
Verified	2017-11-07	Oliver Kruse	F5174E460025E5CB	1	2407613	5	3

History

Date	User	Type	Result
2022-03-10	LordJulius	NF	no factor from 2^1 to 2^60
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-07	Oliver Kruse	C-PRP	M2492443/60934618251478393073 : F5174E460025E5CB PRP: Verified PRP without proof (not generated)
2017-10-15	kkmrkkblmbrbk	C-PRP	M2492443/60934618251478393073 : F5174E460025E5CB PRP: Verified PRP without proof (not generated)
2015-07-14	guru	F-ECM	Factor: 60934618251478393073 / (ECM curve 1, B1=50000, B2=5000000)
2015-03-03	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-03	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-11-30	mikr	NF-PM1	B1=2382500, B2=85770100, E=12
2014-09-10	Joss	NF-PM1	B1=120752
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-11	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-22	Oscar Östlin	NF-PM1	B1=95000, B2=1971250, E=6
2010-12-22	Joss	NF-PM1	B1=20000
2009-01-11	Sturle Sunde	NF	no factor from 2^60 to 2^61