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Hermionegeorginatriago
Answered

what are the common factors of 18 and 21​

Sagot :

Lexivonjeanmahilumgo

Answer: There are 2 common factors of 18 and 21, that are 1 and 3. Therefore, the greatest common factor of 18 and 21 is 3.

Answer:

3.

Step-by-step 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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