The context of the question will determine which it is. Also, if you expect the answer to be bigger than the numbers then it is the LCM else the HCF.
The HCF is: 2The LCM is: 2,520
HCF is 48 and LCM is 576
hcf = 42, lcm = 84.
hcf is 1 and LCM is 35
hcf: 1 lcm: 112,038
Depends on what it is asking for.
Two or more numbers are needed to solve for HCF or LCM.
You cannot. The numbers 2 and 12 have hcf = 2 and LCM = 12 The numbers 4 and 6 also have hcf = 2 and LCM = 12 So if you just knew the hcf and LCM you would not know which of the two was the required pair.
The LCM will never be less than the GCF.
When simplifying fractions it's useful to know what is the HCF of the numerator and denominator is. When adding or subtracting fractions with different denominators it's useful to know what the LCM of them is.
LCM is 20 and the hcf is 10
HCF = 3... LCM = 18 !
HCF is 60 and the LCM is 360
The HCF is: 2The LCM is: 2,520
HCF is 48 and LCM is 576
hcf = 42, lcm = 84.
hcf is 1 and LCM is 35