Question

find the square root using prime factors of 81​

Answer 1

Answer:

Prime factorization of 81 = 3× 3 × 3 × 3 which can also be written 3⁴. Since √81 = 9, a whole number, 81 is a perfect square. Even though it has other factors, the only multiplication fact we use is 9 × 9 = 81.

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Answer 2

Step-by-step explanation:

Prime factorization of 81 = 3× 3 × 3 × 3 which can also be written 3⁴. Since √81 = 9, a whole number, 81 is a perfect square. Even though it has other factors, the only multiplication fact we use is 9 × 9 = 81.