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Find a counterexample to the statement 4n+1 is divisible by 5 ?

by Guest59560  |  earlier

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  1. 1. 2n+2 is divisible by 2 ( n is an integer)


  2. n=2, 3, 4, 5, 7, 8, ....

  3. when n= 2

    4*2+1 = 8+1= 9

    9 not divisible by 5

  4. Many choices for n will result in a counterexample.

    For example:

    n = 2

    4n + 1 = 4(2) + 1 = 9

    9 is not evenly divisible by 5.

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