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WHAT IS THE HCF OF 21 28 42
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WHAT IS THE HCF OF 21 28 42

User NileshChauhan
by
6.8k points

1 Answer

3 votes

Answer:

7.

Explanation:

21 = 3 * 7

28 = 2 * 2 * 7

42 = 2 * 3 * 7

Collecting common factors:

t is common to all 3 sets of factors so

HCF = 7.

User EyalBellisha
by
6.3k points
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