1 903 061 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
11418367	8	23.4	old
685311296711	12	39.3	2008-07-15 07:48:01
29899160390010019241201	23	74.7	2018-04-26 19:04:52

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)	2017-10-04	Oliver Kruse	6A9B2C6BF7E9FD94	2	0	1	3
Verified (Factored)	2017-11-09	kkmrkkblmbrbk	6A9B2C6BF7E9FD94	2	1471763	1	3
Verified	2018-04-28	Oliver Kruse	E28926462FEB06E4	3	1237347	5	3
Verified	2018-04-28	ATH	E28926462FEB06E4	3	1373992	5	3

History

Date	User	Type	Result
2021-06-30	Dylan Delgado	NF-PM1	B1=2000000, B2=262000000
2021-04-07	Dylan Delgado	NF-PM1	B1=1000000, B2=71000000
2018-04-28	ATH	C-PRP	M1903061/11418367/685311296711/29899160390010019241201 : E28926462FEB06E4 PRP: Verified PRP without proof (not generated)
2018-04-28	Oliver Kruse	C-PRP	M1903061/11418367/685311296711/29899160390010019241201 : E28926462FEB06E4 PRP: Verified PRP without proof (not generated)
2018-04-26	ATH	F-ECM	Factor: 29899160390010019241201 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-09	kkmrkkblmbrbk	C-PRP	M1903061/11418367/685311296711 : 6A9B2C6BF7E9FD94 PRP: Verified PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1903061/11418367/685311296711 : 6A9B2C6BF7E9FD94 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-07-15	J Feitsma	F	Factor: 685311296711