Fewpal
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Let f : (2, ∞) → N be defined by f (x) = the largest prime factor of [x]. Then ∫f (x)dx, x [2, 8 ] is equal to

(A) 17 

(B) 22 

(C) 23 

(D) 25 

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Correct Option :- (B) 22

Explanation :-

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