Sally1768 Sally1768

02-08-2018
Mathematics

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Prove that the sum of four consecutive numbers is always an even.

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konrad509 konrad509

02-08-2018

[tex] n+n+1+n+2+n+3=4n+6=2(2n+3) [/tex]

One of the factors is 2, so the number is even.

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