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How many elements of the set {1!, 2!, 3!, ....2015!} are even numbers?

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Answer without calculation?

posted Jul 13, 2015 by Salil Agrawal

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2 Solutions

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2014 as each term contains 2 except 1

solution Jul 13, 2015 by Shiva Gurram
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2014 elements are even numbers

solution Oct 10, 2015 by Sush



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