444 463 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
155271667183212329826697	24	77.0	2016-07-24 20:37:50
57544340692218118597051683551	29	95.5	2020-07-04 14:43:44

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	230 / 640

Estimated T-Level: 26.8 ⓘ

TF below 2^84 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Alex and Nick Myrman	4377	0
Verified (Factored)		Larry English	0A49F66AB5D3C377	0
Verified (Factored)		Jean-Charles Meyrignac	0A49F66AB5D3C377	0
Verified (Factored)		Cornelius Caesar	0A49F66AB5D3C377	0
Verified (Factored)		Eivind Triel	0A49F66AB5D3C377	298799
Verified (Factored)	2016-06-01	MadPoo	0A49F66AB5D3C377	132559

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-24	Oliver Kruse	F4D37B95FE28A966	1	0	1	3
Verified (Factored)	2017-09-24	Oliver Kruse	F4D37B95FE28A966	1	0	1	3
Verified (Factored)	2017-11-09	kkmrkkblmbrbk	F4D37B95FE28A966	1	378562	1	3
Verified (Factored)	2020-04-18	Oliver Kruse	BE3031777153DBC7	1	106823	5	3
Verified	2020-07-05	mnd9	BE3031777153DBC7	2	246635	5	3
Verified	2020-07-05	oodaira	BE3031777153DBC7	2	437510	5	3

History

Date	User	Type	Result
2020-07-05	oodaira	C-PRP	M444463/155271667183212329826697/57544340692218118597051683551 : BE3031777153DBC7 PRP: Verified PRP without proof (small exponent)
2020-07-05	mnd9	C-PRP	M444463/155271667183212329826697/57544340692218118597051683551 : BE3031777153DBC7 PRP: Verified PRP without proof (small exponent)
2020-07-04	nordi	F-ECM	Factor: 57544340692218118597051683551 / (ECM curve 31, B1=250000, B2=25000000, Sigma=3488879619845114)
2020-04-18	Oliver Kruse	C-PRP	M444463/155271667183212329826697 : BE3031777153DBC7 PRP: Verified PRP without proof (small exponent)
2017-11-09	kkmrkkblmbrbk	C-PRP	M444463/155271667183212329826697 : F4D37B95FE28A966 PRP: Verified PRP without proof (small exponent)
2017-09-24	Oliver Kruse	C-PRP	M444463/155271667183212329826697 : F4D37B95FE28A966 PRP: Verified PRP without proof (not generated)
2017-09-24	Oliver Kruse	C-PRP	M444463/155271667183212329826697 : F4D37B95FE28A966 PRP: Verified PRP without proof (not generated)
2016-07-24	SRJ2877	F-ECM	Factor: 155271667183212329826697 / (ECM curve 31, B1=250000, B2=25000000)
2016-06-01	MadPoo	C-LL	0A49F66AB5D3C377
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-12-02	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-12-02	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-16	NR	NF	no factor from 2^61 to 2^62
2012-11-02	markr	NF-PM1	B1=20000000, B2=1000000000, E=12
2010-09-07	Rob_Dee	NF-PM1	B1=1000000, B2=2000000, E=6
2010-09-06	Rob_Dee	NF-PM1	B1=500000, B2=1000000
2010-04-11	Architects Cubed	NF	no factor from 2^60 to 2^61
2009-08-27	Carsten Kossendey	NF-PM1	B1=444463