The HCF of 20, 28 and 48 is:
4
Given:
The numbers are 20, 28 and 48
Calculation:
Factors of 20, 28 and 48
20 = 2 × 2 × 5
28 = 2 × 2 × 7
48 = 2 × 2 × 11
Highest common factors is 2 × 2 = 4
∴ The HCF is 4.
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