Q: Is 491,787 a Prime Number?
A: No, 491,787 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 491787 can be evenly divided by 1 3 9 53 159 477 1,031 3,093 9,279 54,643 163,929 and 491,787, with no remainder.
Since 491,787 cannot be divided by just 1 and 491,787, it is not a prime number.