Q: Is 321,488 a Prime Number?
A: No, 321,488 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 321488 can be evenly divided by 1 2 4 8 16 71 142 283 284 566 568 1,132 1,136 2,264 4,528 20,093 40,186 80,372 160,744 and 321,488, with no remainder.
Since 321,488 cannot be divided by just 1 and 321,488, it is not a prime number.