Q: Is 243,173 a Prime Number?
A: No, 243,173 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 243173 can be evenly divided by 1 7 34,739 and 243,173, with no remainder.
Since 243,173 cannot be divided by just 1 and 243,173, it is not a prime number.