Q: Is 689,445 a Prime Number?
A: No, 689,445 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 689445 can be evenly divided by 1 3 5 9 15 27 45 135 5,107 15,321 25,535 45,963 76,605 137,889 229,815 and 689,445, with no remainder.
Since 689,445 cannot be divided by just 1 and 689,445, it is not a prime number.