Q: Is 126,315 a Prime Number?
A: No, 126,315 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 126315 can be evenly divided by 1 3 5 7 9 15 21 35 45 63 105 315 401 1,203 2,005 2,807 3,609 6,015 8,421 14,035 18,045 25,263 42,105 and 126,315, with no remainder.
Since 126,315 cannot be divided by just 1 and 126,315, it is not a prime number.