Q: Is 321,172 a Prime Number?
A: No, 321,172 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 321172 can be evenly divided by 1 2 4 23 46 92 3,491 6,982 13,964 80,293 160,586 and 321,172, with no remainder.
Since 321,172 cannot be divided by just 1 and 321,172, it is not a prime number.