Q: Is 689,240 a Prime Number?
A: No, 689,240 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 689240 can be evenly divided by 1 2 4 5 8 10 20 40 17,231 34,462 68,924 86,155 137,848 172,310 344,620 and 689,240, with no remainder.
Since 689,240 cannot be divided by just 1 and 689,240, it is not a prime number.