Q: Is 491,872 a Prime Number?
A: No, 491,872 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 491872 can be evenly divided by 1 2 4 8 16 19 32 38 76 152 304 608 809 1,618 3,236 6,472 12,944 15,371 25,888 30,742 61,484 122,968 245,936 and 491,872, with no remainder.
Since 491,872 cannot be divided by just 1 and 491,872, it is not a prime number.