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WHAT IS THE HCF OF 21 28 42

WHAT IS THE HCF OF 21 28 42
asked 48.1k views
5 votes
WHAT IS THE HCF OF 21 28 42

asked
User NileshChauhan
by
8.4k 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.

answered
User EyalBellisha
by
8.2k points
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