Q: Is 128,320 a Prime Number?
A: No, 128,320 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 128320 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 160 320 401 802 1,604 2,005 3,208 4,010 6,416 8,020 12,832 16,040 25,664 32,080 64,160 and 128,320, with no remainder.
Since 128,320 cannot be divided by just 1 and 128,320, it is not a prime number.