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ARITHMETIC READINESS Greatest common factor of 2 numbers Find the greatest common factor of 21 and 49 .

User Casteurr
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2 Answers

1 vote

GCF = 7

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Step-by-step explanation -

Our task is to find the greatest common factor of 21 and 49.

In order to find the greatest common factor (GCF) of 21 and 49, we can start by listing out the factors of each of these numbers:

21 = 1, 3, 7, 21

49 = 1, 7, 49

Then, select the greatest number that appears in both lists. That number is 7.

Therefore, the GCF is 7.

User Alexei Levenkov
by
7.9k points
1 vote

Answer:

21 = 3 × 7

49 = 7 × 7

GCF of 21 and 49 = 7

User Bobulous
by
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