Q: Is 420,637 a Prime Number?
A: No, 420,637 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 420637 can be evenly divided by 1 7 60,091 and 420,637, with no remainder.
Since 420,637 cannot be divided by just 1 and 420,637, it is not a prime number.