Q: Is 402,418 a Prime Number?
A: No, 402,418 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 402418 can be evenly divided by 1 2 201,209 and 402,418, with no remainder.
Since 402,418 cannot be divided by just 1 and 402,418, it is not a prime number.