It is 11
The GCF is 11.
The GCF is 11.
The GCF is 11.
The GCF is 11.
If you mean: 55, 77 and 132 then the hcf is 11
11
11
It is: 11
11. 121 = 112 55 = 5 x 11 143 = 11 x 13 hcf = 11
The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The highest factor of any number is itself.
It is: 11