You need at least two numbers to find a GCF.
The GCF is 7.
The GCF is 7.
The GCF is 1.
5
The greatest (and only) common factor of 4 and 5 is 1.
7
The HCF is 7
It is: 7
The greatest common factor of 77 and 203 is 7To find the Highest Common Factor convert each number into its prime factors.77 = 7 x 11203 = 7 x 29In this example, 7 is the only factor common to both numbers and is therefore the Highest Common Factor of 77 and 203The GCF is 7.
The greatest common factor of 133 and 203 is 7
The GCF is 29.
The GCF is 7.
The GCF is 1.
The GCF is 7.
The GCF is 7.
The GCF is 1.
The prime factors of 91 are 7 and 13 The prime factors of 203 are 7 and 29 Therefore, the highest common factor of 91 and 203 is 7