Q: Is 42,723 a Prime Number?
A: No, 42,723 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 42723 can be evenly divided by 1 3 9 47 101 141 303 423 909 4,747 14,241 and 42,723, with no remainder.
Since 42,723 cannot be divided by just 1 and 42,723, it is not a prime number.