1
HCF is the highest common factor of two or more numbers. HCF of 56 and 49 is 7.
49 = 7 x 7, 21 = 7 x 3, 91 = 7 x 13. HCF is 7
HCF = 56 LCM = 8008 616 = 2^3 x 7 x 11 728 = 2^3 x 7 x 13 hcf = 2^3 x 7 = 56 lcm = 2^3 x 7 x 11 x 13 = 8008
The GCF is 7.
The HCF is 7.
The GCF is 42.
The GCF is 7.
Factors of 18 are 3,3,& 2. Factors of 21 are 3 & 7 One lot of '3' is common to both so '3' is the HCF.
The GCF is 7.
The HCF of 165 and 210 is 15. The LCM is 2310.
The GCF is 7.
The GCF is 1.