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## Answers

210: 23 5790: 2335 GCF: 23 5 The Greates Common Factor (GCF) is: 2 x 3 x 5 = 30

**the G.C.F of 210 and 90 is 30.**

**method used is :**

**first I am taking the factor of each of the value and then multiply it**

**210 : 23 and 57**

**90 : 23 and 35**

**greatest factor = 2*3*5 = 30**

**∴ the G.C.F is 30.**

**hope so my answer is useful............^_^ !!!!**