1 795 247 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
66312833687	11	35.9	old
18791411503716767	17	54.1	2014-10-30 12:18:48
2043632065369282681	19	60.8	2015-06-30 15:00:19
3000552642878339711	19	61.4	2015-06-30 15:00:19
76391316862155142817	20	66.1	2017-12-15 03:59:46

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	A0FEE4019415AD4C	4	0	1	3
Verified (Factored)	2017-11-11	kkmrkkblmbrbk	A0FEE4019415AD4C	4	1318035	1	3
Verified	2017-12-16	Oliver Kruse	058FAB29B19BCDE6	5	178199	5	3
Verified	2017-12-18	kkmrkkblmbrbk	058FAB29B19BCDE6	5	860652	5	3

P-1 factors

Date	Factor	B1	B2
2015-06-30	2043632065369282681	500000	15000000
2015-06-30	3000552642878339711	500000	15000000

History

Date	User	Type	Result
2017-12-18	kkmrkkblmbrbk	C-PRP	M1795247/66312833687/18791411503716767/2043632065369282681/3000552642878339711/76391316862155142817 : 058FAB29B19BCDE6 PRP: Verified PRP without proof (not generated)
2017-12-16	Oliver Kruse	C-PRP	M1795247/66312833687/18791411503716767/2043632065369282681/3000552642878339711/76391316862155142817 : 058FAB29B19BCDE6 PRP: Verified PRP without proof (not generated)
2017-12-15	Chang Chia-Tche	F-ECM	Factor: 76391316862155142817 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-11	kkmrkkblmbrbk	C-PRP	M1795247/66312833687/18791411503716767/2043632065369282681/3000552642878339711 : A0FEE4019415AD4C PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1795247/66312833687/18791411503716767/2043632065369282681/3000552642878339711 : A0FEE4019415AD4C PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1795247/66312833687/18791411503716767/2043632065369282681/3000552642878339711 : A0FEE4019415AD4C PRP without proof (not generated)
2015-06-30	alpertron	F-PM1	Factor: 6132025594814721051806182060306845191 / (P-1, B1=500000, B2=15000000, E=12)
2014-10-30	TJAOI	F	Factor: 18791411503716767 / TF: 54-55