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The Greatest Common Factor (GCF) is: 21
The GCF Is 21

168 = 8 x 21

189 = 9 x 21

Process:

168 = 2 x 2 x 2 x 3 x 7

189 = 3 x 3 x 3 x 7

Common factors are 3 and 7 and 3 x 7 = 21

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9y ago

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