Q: Is 809,920 a Prime Number?
A: No, 809,920 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 809920 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 160 320 2,531 5,062 10,124 12,655 20,248 25,310 40,496 50,620 80,992 101,240 161,984 202,480 404,960 and 809,920, with no remainder.
Since 809,920 cannot be divided by just 1 and 809,920, it is not a prime number.