Q: Is 689,560 a Prime Number?
A: No, 689,560 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 689560 can be evenly divided by 1 2 4 5 8 10 20 40 17,239 34,478 68,956 86,195 137,912 172,390 344,780 and 689,560, with no remainder.
Since 689,560 cannot be divided by just 1 and 689,560, it is not a prime number.