1 603 009 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
428259884441	12	38.6	old
42554000267533041713	20	65.2	2018-07-25 09:34:23

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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)	2017-10-02	Oliver Kruse	948B05E6A9339796	1	0	1	3
Verified (Factored)	2017-11-01	kkmrkkblmbrbk	948B05E6A9339796	1	1446378	1	3
Verified	2018-07-27	_p95holder_	10BE2A04A1D0DDE7	2	1092120	5	3
Verified	2018-07-27	Gabriel Lignelli	10BE2A04A1D0DDE7	2	28459	5	3
Verified	2018-07-27	Martin Russell	10BE2A04A1D0DDE7	2	1473016	5	3

History

Date	User	Type	Result
2021-07-20	Dylan Delgado	NF-PM1	B1=3000000, B2=273000000
2018-07-27	Martin Russell	C-PRP	M1603009/428259884441/42554000267533041713 : 10BE2A04A1D0DDE7 PRP: Verified PRP without proof (not generated)
2018-07-27	Gabriel Lignelli	C-PRP	M1603009/428259884441/42554000267533041713 : 10BE2A04A1D0DDE7 PRP: Verified PRP without proof (not generated)
2018-07-27	_p95holder_	C-PRP	M1603009/428259884441/42554000267533041713 : 10BE2A04A1D0DDE7 PRP: Verified PRP without proof (not generated)
2018-07-25	TJAOI	F	Factor: 42554000267533041713 / TF: 65-66
2017-11-01	kkmrkkblmbrbk	C-PRP	M1603009/428259884441 : 948B05E6A9339796 PRP: Verified PRP without proof (not generated)
2017-10-02	Oliver Kruse	C-PRP	M1603009/428259884441 : 948B05E6A9339796 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12