Q. Find the greatest common factor of 210 and 90 .
List factors of 210: List the factors of 210.Factors of 210: 1, 2, 3, 5, 6, 7, 10, 14, 2100, 2101, 2102, 2103, 2104, 2105, 2106, 210
List factors of 90: List the factors of 90.Factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 20, 21
Identify common factors of 210 and 90: Identify the common factors of 210 and 90.Common factors of 210 and 90: 1, 2, 3, 5, 900, 901, 902, 903
Find GCF of 210 and 90: Find the Greatest Common Factor (GCF) of 210 and 90.The greatest common factor is the largest number in the list of common factors.GCF of 210 and 90: 30