4 322 119 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
1514999412819656105143	22	70.4	2009-12-16 07:00:26

ECM

Digits	B1	Curves
25	50000	3 / 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)		Mark James	87104F2EA06DF910	0
Verified (Factored)	1999-12-15	ETI	87104F2EA06DF910	3400585

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	9FA70F112288DB4E	1	0	1	3
Verified	2018-01-31	Oliver Kruse	9FA70F112288DB4E	1	3400613	1	3

History

Date	User	Type	Result
2023-03-11	USAFSS	NF-PM1	B1=224000, B2=114813270
2018-01-31	Oliver Kruse	C-PRP	M4322119/1514999412819656105143 : 9FA70F112288DB4E PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4322119/1514999412819656105143 : 9FA70F112288DB4E PRP: Verified PRP without proof (not generated)
2009-12-16	Aca Arsov	F-ECM	Factor: 1514999412819656105143
2009-08-01	Carsten Kossendey	NF-PM1	B1=25000, B2=343750