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  2. Taxman (mathematical game) - Wikipedia

    en.wikipedia.org/wiki/Taxman_(mathematical_game)

    The game is played between two players on a board consisting of whole numbered tokens labeled 1 through N, where N is any positive whole number. During each turn, one player (deemed the tax payer) takes a number from the board, and the other player (deemed the taxman) removes all remaining factors of the tax payer's number from the board.

  3. Ages of Three Children puzzle - Wikipedia

    en.wikipedia.org/wiki/Ages_of_Three_Children_puzzle

    Because the census taker knew the total (from the number on the gate) but said that he had insufficient information to give a definitive answer, there must be more than one solution with the same total. Only two sets of possible ages add up to the same totals: A. 2 + 6 + 6 = 14 B. 3 + 3 + 8 = 14

  4. Multiple (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Multiple_(mathematics)

    In mathematics, a multiple is the product of any quantity and an integer. [1] In other words, for the quantities a and b, it can be said that b is a multiple of a if b = na for some integer n, which is called the multiplier. If a is not zero, this is equivalent to saying that / is an integer.

  5. Carroll diagram - Wikipedia

    en.wikipedia.org/wiki/Carroll_diagram

    A simple Carroll diagram. A Carroll diagram, Lewis Carroll's square, biliteral diagram or a two-way table is a diagram used for grouping things in a yes/no fashion. Numbers or objects are either categorised as 'x' (having an attribute x) or 'not x' (not having an attribute 'x').

  6. Game - Wikipedia

    en.wikipedia.org/wiki/Game

    Most other board games combine strategy and luck factors; the game of backgammon requires players to decide the best strategic move based on the roll of two dice. Trivia games have a great deal of randomness based on the questions a person gets. German-style board games are notable for often having rather less of a luck factor than many board ...

  7. Multi-stage game - Wikipedia

    en.wikipedia.org/wiki/Multi-stage_game

    In game theory, a multi-stage game is a sequence of several simultaneous games played one after the other. [1] This is a generalization of a repeated game : a repeated game is a special case of a multi-stage game, in which the stage games are identical.

  8. Factor analysis - Wikipedia

    en.wikipedia.org/wiki/Factor_analysis

    The initial development of common factor analysis with multiple factors was given by Louis Thurstone in two papers in the early 1930s, [42] [43] summarized in his 1935 book, The Vector of Mind. [44] Thurstone introduced several important factor analysis concepts, including communality, uniqueness, and rotation. [ 45 ]

  9. Abundant number - Wikipedia

    en.wikipedia.org/wiki/Abundant_number

    The smallest abundant number not divisible by 2 or by 3 is 5391411025 whose distinct prime factors are 5, 7, 11, 13, 17, 19, 23, ... Every multiple of a perfect ...