Q: Is 660,668 a Prime Number?
A: No, 660,668 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 660668 can be evenly divided by 1 2 4 19 38 76 8,693 17,386 34,772 165,167 330,334 and 660,668, with no remainder.
Since 660,668 cannot be divided by just 1 and 660,668, it is not a prime number.