Question

5. Write cubes of five natural numbers which are multiples of 3 and verify the following:
"The cube of a natural number which is a multiple of 3 is a multiple of 27”.
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Answer 1

Answer:

Five natural numbers, which are multiples of 3, are 3, 6, 9, 12 and 15. It is evident that the cubes of the above multiples of 3 could be written as multiples of 27. Thus, it is verified that the cube of a natural number, which is a multiple of 3, is a multiple of 27.