Q: Is 688,960 a Prime Number?
A: No, 688,960 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 688960 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 160 320 2,153 4,306 8,612 10,765 17,224 21,530 34,448 43,060 68,896 86,120 137,792 172,240 344,480 and 688,960, with no remainder.
Since 688,960 cannot be divided by just 1 and 688,960, it is not a prime number.