Q: Is 172,623 a Prime Number?
A: No, 172,623 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 172623 can be evenly divided by 1 3 11 33 5,231 15,693 57,541 and 172,623, with no remainder.
Since 172,623 cannot be divided by just 1 and 172,623, it is not a prime number.