write the cubes of 5 natural number which are multiples of 7 and verify the following the cubes to a multiple of 7 is a multiple of 7³
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Five multiples of 7 can be written by choosing different values of a natural number n in the expression 7n. Let the five multiples be 7, 14, 21, 28 and 35. Hence, the cube of multiple of 7 is a multiple of 7 .
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