Gravitational force is the force of attraction between any two objects with mass. It is directly proportional to the product of the masses of the objects and inversely proportional to the square of the distance between them.

The gravitational force between the Earth and Uranus is approximately 4.3 x 10^22 newtons. This is a very large force, but it is still much smaller than the gravitational force between the Earth and the Sun, which is approximately 3.5 x 10^22 newtons.

The reason why the gravitational force between the Earth and Uranus is so small is because Uranus is so far away from the Earth. The distance between the Earth and Uranus varies between 2.6 and 3.2 billion kilometers. This is much greater than the distance between the Earth and the Sun, which is approximately 150 million kilometers.