Question

Prime factors by cube 13824

Answer 1

Answer:

Grouping the prime factors of 256 in triples, we are left over with 2 × 2. Grouping the prime factors of 72 in triples, we are left over with 3 × 3. ∴ The smallest number required to multiply 72 to make it a perfect cube is 3. Grouping the prime factors of 675 to triples, we are left over with 5 × 5.

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