Q: Is 668,001 a Prime Number?
A: No, 668,001 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 668001 can be evenly divided by 1 3 107 321 2,081 6,243 222,667 and 668,001, with no remainder.
Since 668,001 cannot be divided by just 1 and 668,001, it is not a prime number.