Q6. Countries with per capita income of US$ 12616 per annum and above in 2012, are called
a) underdeveloped countries
b) developing countries
c) poor countries
d) rich countries
The full form of LCM in Maths is Least Common Multiple, whereas the full form of HCF is the Highest Common Factor. The H.C.F. defines the greatest factor present in between given two or more numbers, whereas L.C.M. defines the least number which is exactly divisible by two or more numbers.