4 961 941 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
10014936532888293604442468791	29	93.0	2015-04-04 08:49:15

ECM

Digits	B1	Curves
25	50000	6 / 280

Estimated T-Level: 20.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-06-01	Dr James Denholm-Price	76B649EC9D41B0C6	0
Verified (Factored)	2000-04-19	Hoang Anh Vo	76B649EC9D41B0C6	1617115

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	9C20CFBB7BB1743C	1	0	1	3
Verified	2018-04-18	ATH	9C20CFBB7BB1743C	1	4504877	1	3

P-1 factors

Date	Factor	B1	B2
2015-04-04	10014936532888293604442468791	1200000	43100000

History

Date	User	Type	Result
2018-04-18	ATH	C-PRP	M4961941/10014936532888293604442468791 : 9C20CFBB7BB1743C PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4961941/10014936532888293604442468791 : 9C20CFBB7BB1743C PRP: Verified PRP without proof (not generated)
2015-04-04	mikr	F-PM1	Factor: 10014936532888293604442468791 / (P-1, B1=1200000, B2=43100000, E=12)
2014-12-29	VictordeHollander	NF	no factor from 2^64 to 2^65
2014-12-29	VictordeHollander	NF	no factor from 2^63 to 2^64
2011-11-13	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-07-25	Squeeky_Squirrel	NF-PM1	B1=60000, B2=975000, E=6
2009-12-20	markr	NF	no factor from 2^61 to 2^62
2009-08-23	Carsten Kossendey	NF-PM1	B1=30000, B2=435000