1 149 991 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
11472310217	11	33.4	old
19821618528092696290355149631	29	94.0	2018-06-08 13:18:32

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)	2017-09-29	Oliver Kruse	3FB0B91AEFB14C1F	1	0	1	3
Verified (Factored)	2017-10-17	Oliver Kruse	3FB0B91AEFB14C1F	1	784966	1	3
Verified (Factored)	2018-01-02	ATH	3FB0B91AEFB14C1F	1	852573	1	3
Verified	2018-06-10	Daniil Tsarkov	2C3E36E4AE8A060C	2	1097522	5	3
Verified	2018-06-11	Chang Chia-Tche	2C3E36E4AE8A060C	2	664918	5	3

History

Date	User	Type	Result
2018-06-11	Chang Chia-Tche	C-PRP	M1149991/11472310217/19821618528092696290355149631 : 2C3E36E4AE8A060C PRP: Verified PRP without proof (not generated)
2018-06-10	Daniil Tsarkov	C-PRP	M1149991/11472310217/19821618528092696290355149631 : 2C3E36E4AE8A060C PRP: Verified PRP without proof (not generated)
2018-06-08	TJAOI	F-ECM	Factor: 19821618528092696290355149631 / (ECM curve 12, B1=50000, B2=5000000)
2018-01-02	ATH	C-PRP	M1149991/11472310217 : 3FB0B91AEFB14C1F PRP: Verified PRP without proof (not generated)
2017-10-17	Oliver Kruse	C-PRP	M1149991/11472310217 : 3FB0B91AEFB14C1F PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1149991/11472310217 : 3FB0B91AEFB14C1F PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12