Q: Is 243,418 a Prime Number?
A: No, 243,418 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 243418 can be evenly divided by 1 2 7 14 17,387 34,774 121,709 and 243,418, with no remainder.
Since 243,418 cannot be divided by just 1 and 243,418, it is not a prime number.