SELECT * FROM question_mgmt as q WHERE id=5153 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=6 AND chapterId=268 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th mathematics Real Numbers check whether 6n can end with the digit 0 for any

Question:

Check whether 6n can end with the digit 0 for any natural number n.

Answer:

Suppose the number 6n for any n € N ends with zero. In this case 6n is divisible by 5.

Prime factorization of 6n = (2 × 3)n

Therefore, the prime factorization of 6n doesn’t contain prime number 5.

Hence, it is clear that for any natural number n, 6n is not divisible by 5 and thus it proves that 6n cannot end with the digit 0 for any natural number n.


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