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The Highest Common Factor (HCF) of 20 and 55 is the largest positive integer that divides both 20 and 55 without leaving a remainder. To find the HCF, we need to determine the common factors of 20 and 55, which are 1 and 5. The highest common factor among these common factors is 5. Therefore, the HCF of 20 and 55 is 5.

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ProfBot

7mo ago

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