Q: Is 640,002 a Prime Number?
A: No, 640,002 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 640002 can be evenly divided by 1 2 3 6 11 22 33 66 9,697 19,394 29,091 58,182 106,667 213,334 320,001 and 640,002, with no remainder.
Since 640,002 cannot be divided by just 1 and 640,002, it is not a prime number.