The GCF is 3.
Common factors of 42 and 87 are: 1 and 3.
51 = 3 x 17; 87 = 3 x 29. HCF is 3
The greatest common factor of 87 and 51 is 3.
The GCF is 1.
The greatest or highest common factor is the highest number that divides exactly into two or more numbers. 39: 1, 3, 13, 39 87: 1, 3, 29, 87 The greatest common factor for 39 and 87 is 3.
The GCF is 3.
The GCF is 3.
Three is the greatest common factor of 33 and 87.
The highest common factor of 87 and 33 is 3. 87 = 3 x 29 33 = 3 x 11
-51
The GCF is 3.
The factors of 51 are:1, 3, 17, 51The factors of 85 are:1, 5, 17, 85The common factors are:1, 17The Greatest Common Factor:GCF = 17