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Subjects>Math>Basic Math

What is the greatest common factor of 20 and 90?

Haille0598 ∙

Lvl 1

∙ 16y ago

Updated: 4/28/2022

The Greatest Common Factor of 20 and 90 is 10, because the factors of 20 are: 20:1,2,4,5,10,20 The factors of 90 are: 90:1,2,3,5,6,9,10,15,18,30,45,90 So, the common factors are 1,2,5,10 10 is the greatest number of them so 10 is the Greatest Common Factor. THE ANSWER IS 10

Wiki User

∙ 16y ago

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