Q: Is 518,007 a Prime Number?
A: No, 518,007 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 518007 can be evenly divided by 1 3 7 17 21 51 119 357 1,451 4,353 10,157 24,667 30,471 74,001 172,669 and 518,007, with no remainder.
Since 518,007 cannot be divided by just 1 and 518,007, it is not a prime number.