Q: Is 666,627 a Prime Number?
A: No, 666,627 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 666627 can be evenly divided by 1 3 13 39 17,093 51,279 222,209 and 666,627, with no remainder.
Since 666,627 cannot be divided by just 1 and 666,627, it is not a prime number.