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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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3 Answers

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2014 as each term contains 2 except 1

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

answer Oct 10, 2015 by Sush
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Answer:
...........2014 elements are even numbers
As,
from 2! to 2015! each term contains 2
so, 2014 elements are even
but 1! is not an even number..

answer Oct 13, 2017 by Mogadala Ramana
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