Q: Is 16,668 a Prime Number?
A: No, 16,668 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 16668 can be evenly divided by 1 2 3 4 6 9 12 18 36 463 926 1,389 1,852 2,778 4,167 5,556 8,334 and 16,668, with no remainder.
Since 16,668 cannot be divided by just 1 and 16,668, it is not a prime number.