सबसे छोटा (n) क्या है जिसके लिए (n!) संख्या (72) से विभाज्य है?
What is the least (n) for which (n!) is divisible by (72)?
Explanation opens after your attempt
B. (6)
Concept
\(72=2^3\times3^2\) and (6!) contains all these factors. In such questions write prime factors first.
Why this answer is correct
The correct answer is B. (6). \(72=2^3\times3^2\) and (6!) contains all these factors. In such questions write prime factors first.
Exam Tip
\(72=2^3\times3^2\) है और (6!) में ये सभी गुणनखंड हैं। ऐसे प्रश्नों में अभाज्य गुणनखंड पहले लिखें।
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