Q: Is 328,420 a Prime Number?
A: No, 328,420 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 328420 can be evenly divided by 1 2 4 5 10 20 16,421 32,842 65,684 82,105 164,210 and 328,420, with no remainder.
Since 328,420 cannot be divided by just 1 and 328,420, it is not a prime number.