Q: Is 72,423 a Prime Number?
A: No, 72,423 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 72423 can be evenly divided by 1 3 9 13 39 117 619 1,857 5,571 8,047 24,141 and 72,423, with no remainder.
Since 72,423 cannot be divided by just 1 and 72,423, it is not a prime number.