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Class 11 Mathematics Permutations and Combinations Factorial notationExpert

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What is the least (n) for which (n!) is divisible by (72)?

Answer and explanation

Correct answer: (6)

(72=2^3\times3^2) and (6!) contains all these factors. In such questions write prime factors first.

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Factorial Notation Divisibility Expert Permutations And Combinations Mathematics Class 11 Mcq

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