Q: Is 491,103 a Prime Number?
A: No, 491,103 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 491103 can be evenly divided by 1 3 9 27 43 47 81 129 141 243 387 423 1,161 1,269 2,021 3,483 3,807 6,063 10,449 11,421 18,189 54,567 163,701 and 491,103, with no remainder.
Since 491,103 cannot be divided by just 1 and 491,103, it is not a prime number.