64079 (number)
From Wikipedia, the free encyclopedia
| Cardinal | 64079 Sixty four thousand [and] seventy-nine. |
| Ordinal | 64079th Sixty four thousand [and] seventy-ninth. |
| Factorization | 139 • 461 |
| Divisors | 1, 139, 461, 64079 |
| Roman numeral | LXMMMMLXXIX |
| Binary | 1111101001001111 |
| Octal | 175117 |
| Hexadecimal | FA4F |
64079 is the twenty-third Lucas number and is thus often written as L23. It is significant for being the first Lucas number Ln where n is prime that is itself not prime. In a closely related property, 64079 is the smallest extra strong Lucas pseudoprime to base 2.
Its smaller prime factor, 139, can be written in the form 6n+1, where n is the index of the Lucas number. The larger factor, 461, can similarly be written in the form 20n+1.
[edit] Other uses
64079 is the zip code of Platte City and Tracy, Missouri.
