EXERCISE 7.1
Out of the following numbers which are not perfect cubes?
(b) 129
(c) 1000 (d) 100
Find the smallest number by which each of the following
(e) 46656
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Step-by-step explanation:
1000 is a perfect cube..
prime factorisation of 1000 is
1000=2×2×2×5×5×5
100 is not perfect cube
prime factorization of 100 is
100= 2×2×5×5
129 is not perfect cube it is nearest to 125 5√125
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