Q: Is 491,428 a Prime Number?
A: No, 491,428 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 491428 can be evenly divided by 1 2 4 7 14 28 17,551 35,102 70,204 122,857 245,714 and 491,428, with no remainder.
Since 491,428 cannot be divided by just 1 and 491,428, it is not a prime number.