Q: Is 126,405 a Prime Number?
A: No, 126,405 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 126405 can be evenly divided by 1 3 5 9 15 45 53 159 265 477 795 2,385 2,809 8,427 14,045 25,281 42,135 and 126,405, with no remainder.
Since 126,405 cannot be divided by just 1 and 126,405, it is not a prime number.