सबसे छोटा (n) क्या है जिसके लिए (n!) संख्या (343) से विभाज्य हो?
What is the least (n) for which (n!) is divisible by (343)?
Explanation opens after your attempt
A. (21)
Concept
\(343=7^3\) and (21!) gets three factors of (7) from (7,14,21). Therefore the least (n=21).
Why this answer is correct
The correct answer is A. (21). \(343=7^3\) and (21!) gets three factors of (7) from (7,14,21). Therefore the least (n=21).
Exam Tip
\(343=7^3\) है और (21!) में (7,14,21) से तीन (7) मिलते हैं। इसलिए न्यूनतम (n=21) है।
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