28-10-2014
Mathematics

contestada

what is gcf of 21 42 and 63

Respuesta :

28-10-2014

7... if you list the factors of all 3 of this number... you will see 7 is the common factor... because:
7x3=21
7x6=42
7x9= 63

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catluva03 catluva03

28-10-2014

Ther gcf of 21, 42, and 63 is 21

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