Q: Is 509,408 a Prime Number?
A: No, 509,408 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 509408 can be evenly divided by 1 2 4 8 16 32 15,919 31,838 63,676 127,352 254,704 and 509,408, with no remainder.
Since 509,408 cannot be divided by just 1 and 509,408, it is not a prime number.