2 819 449 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
792975582901543502807	21	69.4	2015-06-17 17:50:47

ECM

Digits	B1	Curves
25	50000	15 / 280

Estimated T-Level: 20.3 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Tilley	978CB34399FACC36	0
Verified (Factored)	1999-11-04	MFS Software	978CB34399FACC36	1473990

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-22	Oliver Kruse	4C471CD2A80752BE	1	1315715	5	3
Verified	2017-12-06	kkmrkkblmbrbk	4C471CD2A80752BE	1	869657	5	3

History

Date	User	Type	Result
2023-01-29	USAFSS	NF-PM1	B1=360000, B2=287380170
2017-12-06	kkmrkkblmbrbk	C-PRP	M2819449/792975582901543502807 : 4C471CD2A80752BE PRP: Verified PRP without proof (not generated)
2017-10-22	Oliver Kruse	C-PRP	M2819449/792975582901543502807 : 4C471CD2A80752BE PRP: Verified PRP without proof (not generated)
2015-06-17	guru	F-ECM	Factor: 792975582901543502807 / (ECM curve 3, B1=50000, B2=5000000)
2015-04-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-02-24	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61