Q: Is 321,748 a Prime Number?
A: No, 321,748 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 321748 can be evenly divided by 1 2 4 7 14 28 11,491 22,982 45,964 80,437 160,874 and 321,748, with no remainder.
Since 321,748 cannot be divided by just 1 and 321,748, it is not a prime number.