4 800 619 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
26864949951657577	17	54.6	old
549004011315314872601	21	68.9	2019-05-31 17:30:43

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-11-21	nokno	180707715F6FB392	1	0	1	3
Verified (Factored)	2018-01-06	kkmrkkblmbrbk	180707715F6FB392	1	1667026	1	3
Verified	2019-06-03	fre_games	A9B5E5626A36CD8F	2	3078547	5	3
Verified	2019-06-06	artorollo	A9B5E5626A36CD8F	2	175634	5	3

History

Date	User	Type	Result
2022-09-27	USAFSS	NF-PM1	B1=260000, B2=167750730
2019-06-06	artorollo	C-PRP	M4800619/26864949951657577/549004011315314872601 : A9B5E5626A36CD8F PRP: Verified PRP without proof (not generated)
2019-06-03	fre_games	C-PRP	M4800619/26864949951657577/549004011315314872601 : A9B5E5626A36CD8F PRP: Verified PRP without proof (not generated)
2019-05-31	MarkS	F-ECM	Factor: 549004011315314872601 / (ECM curve 1, B1=50000, B2=5000000)
2018-01-06	kkmrkkblmbrbk	C-PRP	M4800619/26864949951657577 : 180707715F6FB392 PRP: Verified PRP without proof (not generated)
2017-11-21	nokno	C-PRP	M4800619/26864949951657577 : 180707715F6FB392 PRP: Verified PRP without proof (not generated)