The HCF of 30 and 105 is 15.
HCF of 735 and 1050 is 105.
Factor trees are ways of notating the process of finding a prime factorization, From there, you can determine the GCF. 105 35,3 7,5,3 225 75,3 25,3,3 5,5,3,3 Select the common factors. 3 x 5 = 15, the GCF.
The GCF/HCF of 360 and 225 is 45.
The GCF is 105.
For 225, 135, 105 the LCM is: 4,725
105
7
105
The hcf is 15.
105/225 = 7/15
The GCF is 9.