Q: Is 321,980 a Prime Number?
A: No, 321,980 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 321980 can be evenly divided by 1 2 4 5 10 17 20 34 68 85 170 340 947 1,894 3,788 4,735 9,470 16,099 18,940 32,198 64,396 80,495 160,990 and 321,980, with no remainder.
Since 321,980 cannot be divided by just 1 and 321,980, it is not a prime number.