Q: Is 126,243 a Prime Number?
A: No, 126,243 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 126243 can be evenly divided by 1 3 9 13 39 83 117 169 249 507 747 1,079 1,521 3,237 9,711 14,027 42,081 and 126,243, with no remainder.
Since 126,243 cannot be divided by just 1 and 126,243, it is not a prime number.