2 757 151 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
45030177836623688143	20	65.3	2013-03-02 06:58:30

ECM

Digits	B1	Curves
25	50000	63 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Gordon M. Spence	A85808C5F243B262	0
Verified (Factored)	1999-06-26	Stephen Wood	A85808C5F243B262	761769

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-20	Oliver Kruse	65ED5112857ADF03	1	2255101	5	3
Verified	2017-12-05	kkmrkkblmbrbk	65ED5112857ADF03	1	2524142	5	3

History

Date	User	Type	Result
2023-02-26	USAFSS	NF-PM1	B1=300000, B2=235127970
2022-03-11	LordJulius	NF	no factor from 2^1 to 2^60
2017-12-05	kkmrkkblmbrbk	C-PRP	M2757151/45030177836623688143 : 65ED5112857ADF03 PRP: Verified PRP without proof (not generated)
2017-10-20	Oliver Kruse	C-PRP	M2757151/45030177836623688143 : 65ED5112857ADF03 PRP: Verified PRP without proof (not generated)
2013-03-02	Torchwood Institute	F-ECM	Factor: 45030177836623688143
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-03-26	markr	NF	no factor from 2^61 to 2^62
2011-05-08	James Heinrich	NF-PM1	B1=190000, B2=4655000, E=6
2011-01-23	Joss	NF-PM1	B1=50000
2011-01-02	Joss	NF-PM1	B1=30000
2010-12-21	Joss	NF-PM1	B1=20000
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61