Q: Is 491,021 a Prime Number?
A: No, 491,021 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 491021 can be evenly divided by 1 263 1,867 and 491,021, with no remainder.
Since 491,021 cannot be divided by just 1 and 491,021, it is not a prime number.