Q: Is 243,618 a Prime Number?
A: No, 243,618 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 243618 can be evenly divided by 1 2 3 6 19 38 57 114 2,137 4,274 6,411 12,822 40,603 81,206 121,809 and 243,618, with no remainder.
Since 243,618 cannot be divided by just 1 and 243,618, it is not a prime number.