Q: Is 491,139 a Prime Number?
A: No, 491,139 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 491139 can be evenly divided by 1 3 9 11 33 41 99 121 123 363 369 451 1,089 1,331 1,353 3,993 4,059 4,961 11,979 14,883 44,649 54,571 163,713 and 491,139, with no remainder.
Since 491,139 cannot be divided by just 1 and 491,139, it is not a prime number.