1 190 237 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
273754511	9	28.0	old
5627440537	10	32.4	2008-07-15 09:56:27
13602879393231301609789039	26	83.5	2018-06-08 13:19:22
55685814098252389725147767	26	85.5	2018-06-08 13:19:22

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 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	D6FD11F844C44814	2	0	1	3
Verified (Factored)	2017-10-17	Oliver Kruse	D6FD11F844C44814	2	359045	1	3
Verified (Factored)	2018-01-02	ATH	D6FD11F844C44814	2	117800	1	3
Verified	2018-06-10	Daniil Tsarkov	552567C3D8C8E29A	4	1082185	5	3
Verified	2018-06-11	Chang Chia-Tche	552567C3D8C8E29A	4	623299	5	3

History

Date	User	Type	Result
2018-06-11	Chang Chia-Tche	C-PRP	M1190237/273754511/5627440537/13602879393231301609789039/55685814098252389725147767 : 552567C3D8C8E29A PRP: Verified PRP without proof (not generated)
2018-06-10	Daniil Tsarkov	C-PRP	M1190237/273754511/5627440537/13602879393231301609789039/55685814098252389725147767 : 552567C3D8C8E29A PRP: Verified PRP without proof (not generated)
2018-06-08	TJAOI	F-ECM	Factor: 55685814098252389725147767 / (ECM curve 6, B1=50000, B2=5000000)
2018-06-08	TJAOI	F-ECM	Factor: 13602879393231301609789039 / (ECM curve 46, B1=50000, B2=5000000)
2018-01-02	ATH	C-PRP	M1190237/273754511/5627440537 : D6FD11F844C44814 PRP: Verified PRP without proof (not generated)
2017-10-17	Oliver Kruse	C-PRP	M1190237/273754511/5627440537 : D6FD11F844C44814 PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1190237/273754511/5627440537 : D6FD11F844C44814 PRP: Verified PRP without proof (not generated)
2008-07-15	J Feitsma	F	Factor: 5627440537