Q: Is 509,958 a Prime Number?
A: No, 509,958 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 509958 can be evenly divided by 1 2 3 6 9 18 41 82 123 246 369 691 738 1,382 2,073 4,146 6,219 12,438 28,331 56,662 84,993 169,986 254,979 and 509,958, with no remainder.
Since 509,958 cannot be divided by just 1 and 509,958, it is not a prime number.