Q: Is 321,404 a Prime Number?
A: No, 321,404 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 321404 can be evenly divided by 1 2 4 19 38 76 4,229 8,458 16,916 80,351 160,702 and 321,404, with no remainder.
Since 321,404 cannot be divided by just 1 and 321,404, it is not a prime number.