1 270 571 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
352865519263	12	38.4	old
3009056271712585063	19	61.4	2015-01-06 12:05:05
161736444301832638369	21	67.1	2018-01-05 12:42:19

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	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-29	Oliver Kruse	062EDF4438DE90B3	2	0	1	3
Verified (Factored)	2017-10-21	kkmrkkblmbrbk	062EDF4438DE90B3	2	871468	1	3
Verified	2018-01-06	vasya_nyasha	1EB1B26FF85F012F	3	1158931	5	3
Verified	2018-01-07	Oliver Kruse	1EB1B26FF85F012F	3	471692	5	3

P-1 factors

Date	Factor	B1	B2
2015-01-06	3009056271712585063	300000	10000000

History

Date	User	Type	Result
2018-01-07	Oliver Kruse	C-PRP	M1270571/352865519263/3009056271712585063/161736444301832638369 : 1EB1B26FF85F012F PRP: Verified PRP without proof (not generated)
2018-01-06	vasya_nyasha	C-PRP	M1270571/352865519263/3009056271712585063/161736444301832638369 : 1EB1B26FF85F012F PRP: Verified PRP without proof (not generated)
2018-01-05	TJAOI	F-ECM	Factor: 161736444301832638369 / (ECM curve 101, B1=50000, B2=5000000)
2017-10-21	kkmrkkblmbrbk	C-PRP	M1270571/352865519263/3009056271712585063 : 062EDF4438DE90B3 PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1270571/352865519263/3009056271712585063 : 062EDF4438DE90B3 PRP: Verified PRP without proof (not generated)
2015-01-06	alpertron	F-PM1	Factor: 3009056271712585063 / (P-1, B1=300000, B2=10000000, E=12)