2 743 747 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
11954330079193	14	43.4	old
214661925735320216369	21	67.5	2018-04-17 01:07:42

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-20	Oliver Kruse	22232BD27DBA347E	1	1577622	5	3
Verified (Factored)	2017-12-05	kkmrkkblmbrbk	22232BD27DBA347E	1	211793	5	3
Verified	2018-04-19	Oliver Kruse	22232BD27DBA347E	2	602276	5	3

History

Date	User	Type	Result
2022-11-22	USAFSS	NF-PM1	B1=255000, B2=191586780
2018-04-19	Oliver Kruse	C-PRP	M2743747/11954330079193/214661925735320216369 : 22232BD27DBA347E PRP: Verified PRP without proof (not generated)
2018-04-17	ATH	F-ECM	Factor: 214661925735320216369 / (ECM curve 3, B1=50000, B2=5000000)
2017-12-05	kkmrkkblmbrbk	C-PRP	M2743747/11954330079193 : 22232BD27DBA347E PRP: Verified PRP without proof (not generated)
2017-10-20	Oliver Kruse	C-PRP	M2743747/11954330079193 : 22232BD27DBA347E PRP: Verified PRP without proof (not generated)