Q: Is 172,315 a Prime Number?
A: No, 172,315 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 172315 can be evenly divided by 1 5 11 13 55 65 143 241 715 1,205 2,651 3,133 13,255 15,665 34,463 and 172,315, with no remainder.
Since 172,315 cannot be divided by just 1 and 172,315, it is not a prime number.