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What is the next number in the following number series 3, 5, 8, 15, 28, 51, ?

Correct Answer: 98

Explanation:

The given number series is 


3, 5, 8, 15, 28, 51, ?


Here the pattern it follows is


3


3 + 2 = 5 ( add prime number less than 3 i.e, 2)


5 + 3 = 8 (3 is prime number less than 5)


8 + 7 = 15 (7 is prime number less than 8)


15 + 13 = 28 (13 is prime number less than 15)


28 + 23 = 51 (23 is prime number less than 28)


51 + 47 = 98 (47 is prime number less than 51)


 


Hence, the next number in the given number series is 98.


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