यदि \(M={x:x\) (15) से छोटी अभाज्य संख्या है(}), तो (M) कौन-सा है?
If \(M={x:x\) is a prime number less than (15}), which is (M)?
Explanation opens after your attempt
Correct Answer
B. \(M=\{2,3,5,7,11,13\}\)
Concept
A prime number is greater than (1) and has exactly two factors.
Why this answer is correct
Prime numbers less than (15) are (2,3,5,7,11,13).
Exam Tip
Never count (1) as a prime number. चरण 1: अभाज्य संख्या (1) से बड़ी होती है और उसके ठीक दो गुणनखंड होते हैं। चरण 2: (15) से छोटी अभाज्य संख्याएँ (2,3,5,7,11,13) हैं। चरण 3: (1) को अभाज्य संख्या न मानें।
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