Q: Is 243,458 a Prime Number?
A: No, 243,458 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 243458 can be evenly divided by 1 2 41 82 2,969 5,938 121,729 and 243,458, with no remainder.
Since 243,458 cannot be divided by just 1 and 243,458, it is not a prime number.