Q: Is 12,315 a Prime Number?
A: No, 12,315 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 12315 can be evenly divided by 1 3 5 15 821 2,463 4,105 and 12,315, with no remainder.
Since 12,315 cannot be divided by just 1 and 12,315, it is not a prime number.