How many times stronger is an earthquake with a magnitude of 5.0 than an earthquake with a magnitude of 4.0?

The Richter scales grows by powers of 10, so an increase of 1 point means the strength of an earth quake is 10 times greater than the level before it; for example, and earthquake registering 3.0 on the Richter scale is 10 times stronger than a quake that registered 2.0