Q: Is 243,842 a Prime Number?
A: No, 243,842 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 243842 can be evenly divided by 1 2 121,921 and 243,842, with no remainder.
Since 243,842 cannot be divided by just 1 and 243,842, it is not a prime number.