2 335 667 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
506034413231869009039	21	68.8	2010-01-21 07:16:55
7078815386330102008721	22	72.6	2018-03-13 19:59:44

ECM

Digits	B1	Curves
25	50000	76 / 280

Estimated T-Level: 21.4 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-03-09	shelley giles	BA877A4A48BD5726	0
Verified (Factored)	1999-08-07	Kent Lee	BA877A4A48BD5726	99466

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-12	Oliver Kruse	17E25F7FDDF0D0A8	1	0	1	3
Verified (Factored)	2017-11-24	kkmrkkblmbrbk	17E25F7FDDF0D0A8	1	1896829	1	3
Verified	2018-03-13	ATH	B43D3D604CAB11DD	2	743837	5	3
Verified (Factored)	2018-03-14	csaba	C2F9DB7E5B22EC0E	1	0	1	3
Verified	2018-03-15	kkmrkkblmbrbk	B43D3D604CAB11DD	2	45945	5	3

P-1 factors

Date	Factor	B1	B2
2018-03-13	7078815386330102008721	500000	15000000

History

Date	User	Type	Result
2021-04-20	ViliamF	NF-PM1	B1=5000000, B2=505000000
2018-03-15	kkmrkkblmbrbk	C-PRP	M2335667/506034413231869009039/7078815386330102008721 : B43D3D604CAB11DD PRP: Verified PRP without proof (not generated)
2018-03-14	csaba	C-PRP	M2335667/known_factors : C2F9DB7E5B22EC0E PRP: Verified PRP without proof (not generated)
2018-03-13	ATH	C-PRP	M2335667/506034413231869009039/7078815386330102008721 : B43D3D604CAB11DD PRP: Verified PRP without proof (not generated)
2018-03-13	alpertron	F-PM1	Factor: 7078815386330102008721 / (P-1, B1=500000, B2=15000000, E=12)
2017-11-24	kkmrkkblmbrbk	C-PRP	M2335667/506034413231869009039 : 17E25F7FDDF0D0A8 PRP: Verified PRP without proof (not generated)
2017-10-12	Oliver Kruse	C-PRP	M2335667/506034413231869009039 : 17E25F7FDDF0D0A8 PRP: Verified PRP without proof (not generated)
2010-01-21	sannerud.com	F-ECM	Factor: 506034413231869009039
2009-01-14	Sturle Sunde	NF	no factor from 2^60 to 2^61