In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
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Question: Paulo Ribenboim proved in 1991 that the set of these is Diophantine, and in 1912 Edmund Landau proposed four "unattackable problems" dealing with them, none of which have yet been solved. The theorem named for them states that the number of them less than or equal to n is approximately equal to n divided by the natural logarithm of n. The GIMPS project seeks to find examples of the Mersenne type of this number, ordinary examples of which can be found using the sieve of Eratosthenes. For 10 points, identify these numbers whose only two factors are 1 and itself.

Answer: Social Science

Question: In 2010, this country opened the Monument of African Renaissance, which was built by North Korean
laborers and which this country's president claimed a thirty-five percent commission on because it was his
idea. With its smaller neighbor, this country is the site of over 1,000 stone circles used to mark burial
mounds. Locations in this country that played an important role in the slave trade include Saint-Louis and
the site of the Maison des Esclaves, the island of Goree. The Gambia is almost entirely surrounded by this
country. For 10 points, name this country, home to the westernmost point in Africa and the city of Dakar.

Answer: Social Science

Question: Originally this god was much more malevolent, a god of sorcery who had abducted Xochiquetzal and initiated human sacrifices. Overlord of the constellation Great Bear, he had created the world by tearing apart the primordial crocodile Cipactli, though he lost a foot to her and was thus sometimes called Hurakan. The special protector the god of slaves and punisher of wicked, he saw everything in his magic Obsidian looking glass. FTP name this Aztec god of Magic and the Night Sky, the Lord of the "Smoking Mirror. "

Answer:
Social Science