1 792 201 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
415790633	9	28.6	old
626656542663913	15	49.2	2014-04-24 10:23:15
124601275610524847	18	56.8	2015-04-30 11:37:50
4317585298626514057727	22	71.9	2018-12-17 20:21:58

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-05	Oliver Kruse	234F704182D3ECAE	3	0	1	3
Verified (Factored)	2017-11-11	kkmrkkblmbrbk	234F704182D3ECAE	3	297822	1	3
Verified	2018-12-18	Oliver Kruse	DE5AB3402DDCADF4	4	150855	5	3
Verified	2018-12-18	kkmrkkblmbrbk	DE5AB3402DDCADF4	4	295159	5	3

History

Date	User	Type	Result
2018-12-18	kkmrkkblmbrbk	C-PRP	M1792201/415790633/626656542663913/124601275610524847/4317585298626514057727 : DE5AB3402DDCADF4 PRP: Verified PRP without proof (not generated)
2018-12-18	Oliver Kruse	C-PRP	M1792201/415790633/626656542663913/124601275610524847/4317585298626514057727 : DE5AB3402DDCADF4 PRP: Verified PRP without proof (not generated)
2018-12-17	Chang Chia-Tche	F-ECM	Factor: 4317585298626514057727 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-11	kkmrkkblmbrbk	C-PRP	M1792201/415790633/626656542663913/124601275610524847 : 234F704182D3ECAE PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1792201/415790633/626656542663913/124601275610524847 : 234F704182D3ECAE PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1792201/415790633/626656542663913/124601275610524847 : 234F704182D3ECAE PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-04-30	TJAOI	F	Factor: 124601275610524847 / TF: 56-57
2014-04-24	TJAOI	F	Factor: 626656542663913