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positive integer

   Also found in: Wikipedia, Hutchinson 0.01 sec.
positive integer [¦päz·əd·iv ′int·i·jər]
(mathematics)
An integer greater than zero; one of the numbers 1,2,3,….


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In 1770, French mathematician Joseph-Louis Lagrange proved that every positive integer is either a square itself or the sum of two, three, or four squares.
He shows divisibility properties of the number of ways that a positive integer can be written as a sum.
In 1770, French mathematician Joseph-Louis Lagrange proved what Diophantus, Pierre de Fermat, and others previously assumed: Every positive integer is either a square itself or the sum of two, three, or four squares.
 
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