06-07-2015
Mathematics

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what is the gcf of 210 and 90

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06-07-2015

210 ⇒ 210 ÷ 30 = 7
Factor: 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210.

90 ⇒ 90 ÷ 30 = 3
Factor: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90.

The GCF of 210 and 90 is 30.

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