49 157 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
2975669839	10	31.5	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	600 / 4588

Estimated T-Level: 35.7 ⓘ

TF below 2^113 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	98FE0AF8289273AD	1	0	1	3
Verified	2017-10-13	kkmrkkblmbrbk	98FE0AF8289273AD	1	5890	1	3
Verified	2020-04-17	Oliver Kruse	CD3220741F5231EE	1	16789	5	3
Verified	2021-03-22	_p95holder_	CD3220741F5231EE	1	9661	5	3

History

Date	User	Type	Result
2023-05-07	JacobZ	NF-PM1	B1=720000000, B2=524479608402750
2021-03-22	_p95holder_	C-PRP	M49157/2975669839 : CD3220741F5231EE PRP: Verified PRP without proof (small exponent)
2021-03-22	Conductor	F-ECM	Factor: 2975669839 / (ECM curve 1, B1=1000000, B2=100000000, Sigma=8491717678147916)
2020-04-17	Oliver Kruse	C-PRP	M49157/2975669839 : CD3220741F5231EE PRP: Verified PRP without proof (small exponent)
2017-10-13	kkmrkkblmbrbk	C-PRP	M49157/2975669839 : 98FE0AF8289273AD PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M49157/2975669839 : 98FE0AF8289273AD PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M49157/2975669839 : 98FE0AF8289273AD PRP without proof (not generated)
2016-10-02	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12