The continents that lie mostly east of the prime meridian are Asia, Australia, and Africa.
Asia and Australia are continents that are situated completely to the east of the prime meridian. Africa is divided, as the prime meridian cuts through it. Still we can say that Africa is a continent that is situated mostly on the east of the prime meridian, considering the fact that the prime meridian cuts only through the western part of the continent, so only small portion of it is on the west of the prime meridian.
Asia is also a continent that is almost totally on the Northern Hemisphere. Australia is a continent that lies totally on the Southern Hemisphere. Africa, again, is divided, as the equator runs through the middle part of it, thus making it a continent on both the Northern Hemisphere and the Southern Hemisphere.