1 412 447 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
122961986033	12	36.8	old
1357155138001855587961	22	70.2	2018-09-10 21:06:47

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 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)	2017-09-30	Oliver Kruse	F0072678726D0EC9	1	0	1	3
Verified (Factored)	2017-10-26	kkmrkkblmbrbk	F0072678726D0EC9	1	71561	1	3
Verified	2018-09-11	Oliver Kruse	5A4DCB20638288E7	2	1028143	5	3
Verified	2018-09-11	rucio	5A4DCB20638288E7	2	294882	5	3

History

Date	User	Type	Result
2018-09-11	rucio	C-PRP	M1412447/122961986033/1357155138001855587961 : 5A4DCB20638288E7 PRP: Verified PRP without proof (not generated)
2018-09-11	Oliver Kruse	C-PRP	M1412447/122961986033/1357155138001855587961 : 5A4DCB20638288E7 PRP: Verified PRP without proof (not generated)
2018-09-10	Chang Chia-Tche	F-ECM	Factor: 1357155138001855587961 / (ECM curve 3, B1=50000, B2=5000000)
2017-10-26	kkmrkkblmbrbk	C-PRP	M1412447/122961986033 : F0072678726D0EC9 PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1412447/122961986033 : F0072678726D0EC9 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12