1 142 083 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
630085745207928734377	21	69.1	2013-09-04 15:46:28

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 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)		David Slowinski	1270	0
Verified (Factored)		Jeff Woods	E64C958BDD3BB270	0
Verified (Factored)	2002-06-29	S57483	E64C958BDD3BB270	854984

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-29	Oliver Kruse	E579A7C7492922DF	1	0	1	3
Verified	2017-10-17	Oliver Kruse	E579A7C7492922DF	1	1105433	1	3
Verified	2018-01-06	ATH	E579A7C7492922DF	1	555579	1	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^60
2018-01-06	ATH	C-PRP	M1142083/630085745207928734377 : E579A7C7492922DF PRP: Verified PRP without proof (not generated)
2017-10-17	Oliver Kruse	C-PRP	M1142083/630085745207928734377 : E579A7C7492922DF PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1142083/630085745207928734377 : E579A7C7492922DF PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12
2013-09-04	jim f in mn	F-ECM	Factor: 630085745207928734377
2012-10-21	dbaugh	NF	no factor from 2^62 to 2^63
2012-08-27	Axelsson	NF	no factor from 2^61 to 2^62
2009-03-08	Sturle Sunde	NF	no factor from 2^60 to 2^61