You need at least two numbers to find a GCF.
The GCF is 15.
hcf(5, 15) = 5 lcm(5, 15) = 15.
The GCF is 15.
The GCF is 5.
The GCF is 3.
The GCF is 3.
15
HCF is the highest common factor of two or more numbers. HCF of 9 and 15 is 3.
The GCF is 5.
The HCF of 30 and 105 is 15.
15.
15