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: One antagonist in this work leaves behind the head of Aeschere after killing him. Unferth argues that the success of this work's title character was due to luck. A villager steals a golden cup from a cave towards the end of this work. The title character  beheads the corpse of a figure who had been attacking Herot and decides to help King Hrothgar at its beginning. At the end of this work, Wiglaf helps the protagonist battle a dragon which ultimately kills the hero. For 10 points, name this epic poem about a hero who killed the monster Grendel.

Answer: Literature


Question: Producer of the Ram tank based on the American M3 tank, during World War II, its commanders included Andrew McNaughten and Henry Crerar, while its most notable commander during World War I was Arthur Currie. During that war, its forces were regarded as an elite force and left alone by the Germans after the Battle of Vimy Ridge, and ships in its navy included the Athabaskan, Nootka, Micmac, and Haida, which is preserved at Hamilton. Its 3rd Infantry Division was the primary landing force at Juno Beach during Normandy landings, and in 1945, it possessed the world's third-largest navy. FTP, name this Commonwealth country.

Answer:
History