Q: Is 642,422 a Prime Number?
A: No, 642,422 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 642422 can be evenly divided by 1 2 11 22 29,201 58,402 321,211 and 642,422, with no remainder.
Since 642,422 cannot be divided by just 1 and 642,422, it is not a prime number.