1 455 323 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
46504916485572555953	20	65.3	2013-09-01 16:18:11

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)		nmainer	C974D14F83EE7052	0
Verified (Factored)	1998-12-27	David Phillips	C974D14F83EE7052	655890

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-01	Oliver Kruse	40CFF389E3B5FFAB	1	0	1	3
Verified	2017-10-27	kkmrkkblmbrbk	40CFF389E3B5FFAB	1	1286378	1	3

History

Date	User	Type	Result
2017-10-27	kkmrkkblmbrbk	C-PRP	M1455323/46504916485572555953 : 40CFF389E3B5FFAB PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1455323/46504916485572555953 : 40CFF389E3B5FFAB PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2013-09-01	Chang Chia-Tche	F-ECM	Factor: 46504916485572555953
2011-03-08	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-09-02	Rob_Dee	NF-PM1	B1=200000, B2=5000000, E=6
2010-09-01	Rob_Dee	NF-PM1	B1=200000, B2=4000000, E=6
2010-08-31	Rob_Dee	NF-PM1	B1=200000, B2=3000000, E=6
2010-08-30	Rob_Dee	NF-PM1	B1=200000, B2=2000000, E=6
2010-08-29	Rob_Dee	NF-PM1	B1=200000, B2=1000000, E=6
2010-08-28	Rob_Dee	NF-PM1	B1=200000, B2=300000
2010-08-27	Rob_Dee	NF-PM1	B1=100000, B2=200000
2010-05-06	Architects Cubed	NF	no factor from 2^60 to 2^61