Q: Is 491,570 a Prime Number?
A: No, 491,570 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 491570 can be evenly divided by 1 2 5 10 49,157 98,314 245,785 and 491,570, with no remainder.
Since 491,570 cannot be divided by just 1 and 491,570, it is not a prime number.