Q: Is 243,426 a Prime Number?
A: No, 243,426 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 243426 can be evenly divided by 1 2 3 6 29 58 87 174 1,399 2,798 4,197 8,394 40,571 81,142 121,713 and 243,426, with no remainder.
Since 243,426 cannot be divided by just 1 and 243,426, it is not a prime number.