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13 hours ago · 7 (seven) is the natural number following 6 and preceding 8.It is the only prime number preceding a cube.. As an early prime number in the series of positive integers, the number seven has greatly symbolic associations in religion, mythology, superstition and philosophy.
13 hours ago · the number of noncrossing partitions of a set of five elements, as well as the ways in which five pairs of nested parentheses can be arranged, etc. Additionally, 42 is the smallest number k {\displaystyle k} that is equal to the sum its non-prime proper divisors ; i.e. 42 = 1 + 6 + 14 + 21 {\displaystyle 42=1+6+14+21} [ 10 ] (with the latter term representing the sixth triangular number ).
13 hours ago · At the time, in the Medieval West, the title "empire" had a specific technical meaning that was exclusively applied to states that considered themselves the heirs and successors of the Roman Empire. Among these were the "Byzantine Empire", which was the actual continuation of the Eastern portion of the Roman Empire , the Carolingian Empire , the largely Germanic Holy Roman Empire , and the ...
