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Multiplication table from 1 to 10 drawn to scale with the upper-right half labeled with prime factorisations. In mathematics, a multiplication table (sometimes, less formally, a times table) is a mathematical table used to define a multiplication operation for an algebraic system.
By analogy with the square root of x, one can define the (positive) triangular root of x as the number n such that T n = x: [17] = + which follows immediately from the quadratic formula . So an integer x is triangular if and only if 8 x + 1 is a square.
Fifty-one is . a pentagonal number [1] as well as a centered pentagonal number [2] and an 18-gonal number [3]; the 6th Motzkin number, telling the number of ways to draw non-intersecting chords between any six points on a circle's boundary, no matter where the points may be located on the boundary.
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Machine Man (also known as Aaron Stack, Mister Machine and serial number Z2P45-9-X-51 or X-51 for short) is an android superhero appearing in American comic books published by Marvel Comics. The character was created by Jack Kirby for 2001: A Space Odyssey #8 (July 1977), a comic written and drawn by Kirby featuring concepts based on the ...
Hill wanted the building to go completely dark when U2 finished its stirring performance. That required an 11-minute delay to “restrike” the lights and bring them back up for the second half.
The Martin XB-51 was an American trijet ground-attack aircraft. It was designed in 1945 and made its maiden flight in 1949. It was designed in 1945 and made its maiden flight in 1949. It was originally designed as a bomber for the United States Army Air Forces under specification V-8237-1 and was designated XA-45 .
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