Question

Find the HCF of 84 by listing the factors.

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Answer 1

Answer:

We can find the factor pairs, by multiplying two numbers in a pair to get the original number as 84, such as;

1 × 84 = 84.

2 × 42 = 84.

3 × 28 = 84.

4 × 21 = 84.

6 × 14 = 84.

7 × 12 = 84. Therefore, the factor pairs are (1, 84), (2, 42), (3, 28), (4, 21), (6, 14) and (7, 12).

Answer 2

HCF = 2

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