Population distribution in Egypt

The population distribution of Egypt is extremely uneven. The vast majority of the people (about 99%) live along the Nile river valley and its delta.  Other areas with large numbers of people are around the oasis like the Khrijah oasis, Farafirah oasis etc.  The rest of the people live in the deserts and mountains east and west of the Nile.
Factors responsible for the above pattern are Presence of the river Nile which provides water for irrigation, Improvements made in the farming as well as fertile alluvial soils along the Nile valley.