1 440 269 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
742107894618452354630983	24	79.3	2015-03-17 09:22:35

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jack Ingley	085AADE80FE0CC01	0
Verified (Factored)	1998-12-27	chris clark	085AADE80FE0CC01	788034

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	Oliver Kruse	3B0A71176692D5E4	1	0	1	3
Verified	2017-10-27	kkmrkkblmbrbk	3B0A71176692D5E4	1	1330877	1	3

History

Date	User	Type	Result
2017-10-27	kkmrkkblmbrbk	C-PRP	M1440269/742107894618452354630983 : 3B0A71176692D5E4 PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1440269/742107894618452354630983 : 3B0A71176692D5E4 PRP: Verified PRP without proof (not generated)
2015-03-17	Chang Chia-Tche	F-ECM	Factor: 742107894618452354630983 / (ECM curve 1, B1=50000, B2=5000000)
2015-03-10	Joss	NF-PM1	B1=576665
2015-03-03	Joss	NF-PM1	B1=524241
2015-02-25	Joss	NF-PM1	B1=476583
2015-02-13	Joss	NF-PM1	B1=393871
2015-01-30	Joss	NF-PM1	B1=358065
2015-01-27	Joss	NF-PM1	B1=325514
2014-11-14	Joss	NF-PM1	B1=244564
2011-05-07	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-05-22	Rob_Dee	NF-PM1	B1=200000, B2=5000000, E=6
2010-05-21	Rob_Dee	NF-PM1	B1=200000, B2=4000000, E=6
2010-05-20	Rob_Dee	NF-PM1	B1=200000, B2=3000000, E=6
2010-05-19	Rob_Dee	NF-PM1	B1=200000, B2=2000000, E=6
2010-05-16	Rob_Dee	NF-PM1	B1=200000, B2=1000000, E=6
2010-05-15	Rob_Dee	NF-PM1	B1=100000, B2=200000
2010-05-10	Architects Cubed	NF	no factor from 2^60 to 2^61