2 774 801 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
330215445311789000687	21	68.2	2013-03-14 10:02:26

ECM

Digits	B1	Curves
25	50000	9 / 280

Estimated T-Level: 20.2 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Kim Neve	94F4A88B46E2EC34	0
Verified (Factored)	1999-05-09	Matt Bassett	94F4A88B46E2EC34	1018021

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-21	Oliver Kruse	1E461CF6EBFBB0A8	1	1746240	5	3
Verified	2017-12-06	kkmrkkblmbrbk	1E461CF6EBFBB0A8	1	1898520	5	3

History

Date	User	Type	Result
2023-01-27	USAFSS	NF-PM1	B1=288000, B2=261254070
2017-12-06	kkmrkkblmbrbk	C-PRP	M2774801/330215445311789000687 : 1E461CF6EBFBB0A8 PRP: Verified PRP without proof (not generated)
2017-10-21	Oliver Kruse	C-PRP	M2774801/330215445311789000687 : 1E461CF6EBFBB0A8 PRP: Verified PRP without proof (not generated)
2013-03-14	hiems	F-ECM	Factor: 330215445311789000687
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-03-24	Grant McCracken	NF	no factor from 2^61 to 2^62
2010-11-28	markr	NF-PM1	B1=110000, B2=2365000, E=6
2010-11-10	Joss	NF-PM1	B1=15000
2009-01-28	Sturle Sunde	NF	no factor from 2^60 to 2^61