Mauritania is 2.9% larger than Egypt.
Area: 1,001,450 km2 World Factbook
Population: 86,895,099 (July 2014) World Factbook
Egypt, officially: the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia, via a land bridge formed by the Sinai Peninsula. Wikipedia
Area: 1,030,700 km2 World Factbook
Population: 3,516,806 (July 2014) World Factbook
Mauritania, officially the Islamic Republic of Mauritania, is a country in the Maghreb region of western North Africa. Wikipedia