Q. Find the greatest common factor of 90 and 135 .
List factors of 90: List the factors of 90.Factors of 90: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 20, 21
List factors of 135: List the factors of 135.Factors of 135: 1, 3, 5, 9, 15, 27, 45, 135
Find GCF of 90 and 135: Find the Greatest Common Factor (GCF) of 90 and 135.Common factors of 90 and 135: 1, 3, 5, 9, 1350, 13511351 is the greatest of the common factors.GCF of 90 and 135: 1351