1 969 619 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
14218719600859693017446081	26	83.6	2011-04-22 00:01:24

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Kevin Harlan	357E331BAD210113	0
Verified (Factored)	1999-03-26	Johan Småros	357E331BAD210113	1762887

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-05	Oliver Kruse	1F5F60153FEE1776	1	0	1	3
Verified	2017-11-12	kkmrkkblmbrbk	1F5F60153FEE1776	1	1467437	1	3

History

Date	User	Type	Result
2022-08-16	USAFSS	NF-PM1	B1=176000, B2=172776240
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-11-12	kkmrkkblmbrbk	C-PRP	M1969619/14218719600859693017446081 : 1F5F60153FEE1776 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1969619/14218719600859693017446081 : 1F5F60153FEE1776 PRP: Verified PRP without proof (not generated)
2011-04-22	kurly	F-PM1	Factor: 14218719600859693017446081
2010-01-02	S485122	NF	no factor from 2^60 to 2^61