Q: Is 817,120 a Prime Number?
A: No, 817,120 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 817120 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 80 160 5,107 10,214 20,428 25,535 40,856 51,070 81,712 102,140 163,424 204,280 408,560 and 817,120, with no remainder.
Since 817,120 cannot be divided by just 1 and 817,120, it is not a prime number.