438 989 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
9454536838911583	16	53.1	old
3039394702625988152671	22	71.4	2015-04-03 14:24:26
7785085709430074226161	22	72.7	2018-06-08 13:17:49

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	200 / 640

Estimated T-Level: 26.6 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-24	Oliver Kruse	43EBB6AD2A470942	2	0	1	3
Verified (Factored)	2017-09-24	Oliver Kruse	43EBB6AD2A470942	2	0	1	3
Verified (Factored)	2017-11-09	kkmrkkblmbrbk	43EBB6AD2A470942	2	309226	1	3
Verified	2018-06-09	Daniil Tsarkov	3E2370817D659E30	3	138609	5	3
Verified	2018-06-14	_p95holder_	3E2370817D659E30	3	151300	5	3

History

Date	User	Type	Result
2018-06-14	_p95holder_	C-PRP	M438989/9454536838911583/3039394702625988152671/7785085709430074226161 : 3E2370817D659E30 PRP: Verified PRP without proof (small exponent)
2018-06-09	Daniil Tsarkov	C-PRP	M438989/9454536838911583/3039394702625988152671/7785085709430074226161 : 3E2370817D659E30 PRP: Verified PRP without proof (small exponent)
2018-06-08	TJAOI	F-ECM	Factor: 7785085709430074226161 / (ECM curve 15, B1=250000, B2=25000000)
2017-11-09	kkmrkkblmbrbk	C-PRP	M438989/9454536838911583/3039394702625988152671 : 43EBB6AD2A470942 PRP: Verified PRP without proof (small exponent)
2017-09-24	Oliver Kruse	C-PRP	M438989/9454536838911583/3039394702625988152671 : 43EBB6AD2A470942 PRP: Verified PRP without proof (not generated)
2017-09-24	Oliver Kruse	C-PRP	M438989/9454536838911583/3039394702625988152671 : 43EBB6AD2A470942 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=3000000, B2=100000000, E=12
2015-04-03	TJAOI	F-ECM	Factor: 3039394702625988152671 / (ECM curve 18, B1=50000, B2=5000000)