1 304 803 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
53484752836444295737751231	26	85.5	2014-03-08 15:06:15

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)		Jeff Shimbo	C63171D6CBD03A6D	0
Verified (Factored)		Cornelius Caesar	C63171D6CBD03A6D	0
Verified (Factored)		Brian J. Beesley	C63171D6CBD03A6D	908755

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	Oliver Kruse	2C6D0DF180A36706	1	0	1	3
Verified	2017-10-22	kkmrkkblmbrbk	2C6D0DF180A36706	1	196417	1	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^60
2017-10-22	kkmrkkblmbrbk	C-PRP	M1304803/53484752836444295737751231 : 2C6D0DF180A36706 PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1304803/53484752836444295737751231 : 2C6D0DF180A36706 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-03-08	bam	F-ECM	Factor: 53484752836444295737751231
2013-11-11	David Campeau	NF-PM1	B1=1190000, B2=34510000, E=12
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-05-09	Xyzzy	NF	no factor from 2^61 to 2^62
2009-02-15	Sturle Sunde	NF	no factor from 2^60 to 2^61