1 903 387 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
99817969096218911	17	56.5	old
7527410093419590915027593	25	82.6	2020-09-06 21:52:25

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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	1733A3A9D6BDF1B0	1	0	1	3
Verified (Factored)	2017-11-09	kkmrkkblmbrbk	1733A3A9D6BDF1B0	1	145787	1	3
Verified	2020-09-06	Richard Thomas	6C951369379AAB1E	2	1646958	5	3

History

Date	User	Type	Result
2020-09-07	Ben Delo	CERT	PRP Certification Proof certified good
2020-09-06	Richard Thomas	C-PRP	M1903387/99817969096218911/7527410093419590915027593 : 6C951369379AAB1E PRP proof power = 7 PRP: Verified Proof certified good
2020-09-06	MarkS	F-ECM	Factor: 7527410093419590915027593 / (ECM curve 5, B1=50000, B2=5000000, Sigma=411105963284329)
2017-11-09	kkmrkkblmbrbk	C-PRP	M1903387/99817969096218911 : 1733A3A9D6BDF1B0 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1903387/99817969096218911 : 1733A3A9D6BDF1B0 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12