Q: Is 231,315 a Prime Number?
A: No, 231,315 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 231315 can be evenly divided by 1 3 5 7 15 21 35 105 2,203 6,609 11,015 15,421 33,045 46,263 77,105 and 231,315, with no remainder.
Since 231,315 cannot be divided by just 1 and 231,315, it is not a prime number.