Q: Is 321,513 a Prime Number?
A: No, 321,513 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 321513 can be evenly divided by 1 3 107,171 and 321,513, with no remainder.
Since 321,513 cannot be divided by just 1 and 321,513, it is not a prime number.