Q: Is 243,608 a Prime Number?
A: No, 243,608 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 243608 can be evenly divided by 1 2 4 8 37 74 148 296 823 1,646 3,292 6,584 30,451 60,902 121,804 and 243,608, with no remainder.
Since 243,608 cannot be divided by just 1 and 243,608, it is not a prime number.