Q: Is 422,642 a Prime Number?
A: No, 422,642 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 422642 can be evenly divided by 1 2 11 22 19,211 38,422 211,321 and 422,642, with no remainder.
Since 422,642 cannot be divided by just 1 and 422,642, it is not a prime number.