Q: Is 321,572 a Prime Number?
A: No, 321,572 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 321572 can be evenly divided by 1 2 4 17 34 68 4,729 9,458 18,916 80,393 160,786 and 321,572, with no remainder.
Since 321,572 cannot be divided by just 1 and 321,572, it is not a prime number.