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For how many integers where 2 <= n <= 100 is n(n + 1) odd?

 Apr 19, 2021
 #1
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I think there is none....zero....nada  >>>>>>>>>>

 

  an odd number  x  an even number is always even number result.

 Apr 19, 2021
edited by ElectricPavlov  Apr 19, 2021

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