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प्रश्न
Which of the following is not a prime number?
विकल्प
23
29
43
21
MCQ
उत्तर
21
Explanation:
21 is not a prime number.
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Number System (Entrance Exam)
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
Which of the following is not a prime number?
23
29
43
21
21
Explanation:
21 is not a prime number.