The gcf is 3
The LCM is 63
The Greatest Common Factor of 9, 18, 21: 3
The Greatest Common Factor of 60, 21, 9: 3
The Greatest Common Factor of 21, 9 is 3.
3
The greatest common factor (GCF) for 9 and 21 is 3.
The greatest common factor (GCF) of 21 and 9 is 3.
The greatest common factor is 3: Factors of 9: 1, 3, 9 Factors of 18: 1, 2, 3, 6, 9, 18 Factors of 21: 1, 3, 7, 21 The two common factors are 1 and 3 and the greatest of these two is 3.
The GCF of 21 and 9 is 3. 21 and 9 can only be divided by three.
The GCF is 3.
The GCF is 3.
They are 1 and 3 .Note: Those are also the least common factors of 9, 21, and 54 .