Q: Is 420,487 a Prime Number?
A: No, 420,487 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 420487 can be evenly divided by 1 199 2,113 and 420,487, with no remainder.
Since 420,487 cannot be divided by just 1 and 420,487, it is not a prime number.