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babunello [35]
3 years ago
13

What is th GCF of 21 and 18

Mathematics
2 answers:
swat323 years ago
6 0

Answer:

The GCF of 21 and 18 would be 3


Step-by-step explanation:

Factors of 18:

1, 3, 6, 9, 18

Factors of 21:

1, 3, 7

The only common factors between the 2 are 1 and 3 but you want the greatest so you choose 3.

Hope this helps! :)

<h3>CloutAnswers</h3>
ZanzabumX [31]3 years ago
5 0

Answer:

The answer is 3.

Explanation:

Factors of 18:

1, 2, 3, 6, 9, 18.

Factors of 21:

1, 3, 7.

The highest number that both sets contain is 3, so the GCF will be 3.


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