Q: Is 816,320 a Prime Number?
A: No, 816,320 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 816320 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 160 320 2,551 5,102 10,204 12,755 20,408 25,510 40,816 51,020 81,632 102,040 163,264 204,080 408,160 and 816,320, with no remainder.
Since 816,320 cannot be divided by just 1 and 816,320, it is not a prime number.