Q: Is 491,589 a Prime Number?
A: No, 491,589 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 491589 can be evenly divided by 1 3 7 9 17 21 27 51 63 81 119 153 189 243 289 357 459 567 867 1,071 1,377 1,701 2,023 2,601 3,213 4,131 6,069 7,803 9,639 18,207 23,409 28,917 54,621 70,227 163,863 and 491,589, with no remainder.
Since 491,589 cannot be divided by just 1 and 491,589, it is not a prime number.