Q: Is 513,279 a Prime Number?
A: No, 513,279 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 513279 can be evenly divided by 1 3 9 13 39 41 107 117 123 321 369 533 963 1,391 1,599 4,173 4,387 4,797 12,519 13,161 39,483 57,031 171,093 and 513,279, with no remainder.
Since 513,279 cannot be divided by just 1 and 513,279, it is not a prime number.