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find the missing number in below series - 1 , 2 , 5 , 7 , 11 , ?? , 17

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find the missing number in below series - 1 , 2 , 5 , 7 , 11 , ?? , 17
posted Dec 12, 2014 by Atif

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1 Answer

+1 vote

1 2 3 5 7 11 13 17... these r prime nos..
So ans is 13

answer Aug 25, 2015 by Shumaila Ayaz
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