5 011 381 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
3662429084550043896247	22	71.6	2016-11-16 16:10:14

ECM

Digits	B1	Curves
25	50000	6 / 280

Estimated T-Level: 20.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-12-27	Stephen Wood	9826CF37578CC14B	0
Verified (Factored)	2000-07-03	Petros Rapidis	9826CF37578CC14B	3721959

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	11D5D63D8D10BA44	1	0	1	3
Verified	2018-04-28	Oliver Kruse	11D5D63D8D10BA44	1	795254	1	3

P-1 factors

Date	Factor	B1	B2
2016-11-16	3662429084550043896247	300000	9375000

History

Date	User	Type	Result
2018-04-28	Oliver Kruse	C-PRP	M5011381/3662429084550043896247 : 11D5D63D8D10BA44 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5011381/3662429084550043896247 : 11D5D63D8D10BA44 PRP: Verified PRP without proof (not generated)
2016-11-16	Squeeky_Squirrel	F-PM1	Factor: 3662429084550043896247 / (P-1, B1=300000, B2=9375000, E=12)
2016-05-13	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^63
2015-07-23	snme2pm1	NF	no factor from 2^65 to 2^66
2014-11-10	Joss	NF-PM1	B1=67808
2014-08-30	lycorn	NF	no factor from 2^64 to 2^65
2014-08-29	kracker	NF	no factor from 2^63 to 2^64
2009-07-14	USAFSS	NF-PM1	B1=55000, B2=907500, E=6