Q: Is 321,648 a Prime Number?
A: No, 321,648 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 321648 can be evenly divided by 1 2 3 4 6 8 12 16 24 48 6,701 13,402 20,103 26,804 40,206 53,608 80,412 107,216 160,824 and 321,648, with no remainder.
Since 321,648 cannot be divided by just 1 and 321,648, it is not a prime number.