The Greatest Common Factor (GCF) is: 6
The GCF is 6.
Common factors of 18, 30, and 48 are: 1, 2, 3, and 6.
The common factors of 18 and 48 are: 1, 2, 3, and 6
The greatest common factor is 6
66
The same as the highest common factor of 18 and 12 (where 12 is the remainder of the division of 48 by 18).
12
16
THe common factors of 32, 48, and 72 are 1, 2, 4 and 8
The highest common factor is 8
The greatest common factor is 48
'6' Method Factors of 18 are 2,3,6,9, Factors of 30 are 2,3,5,6,10,15, Factors of 48 are 2,3,4,6,8,12,24, 2,3 & 6 appear in all three factorisations. Hence '6' being the largest /highest number , then '6' is the HCF (Highest Common Factor).
The common factors are: 1, 2, 3, 6.