R. Gupta Solutions for Chapter: HCF and LCM, Exercise 1: Multiple Choice Questions

The sum of two numbers is $216$ and their HCF is $27$. The numbers are:

The HCF and LCM of two numbers are $44$ and $264$ respectively. If the first number is divided by $2$, the quotient is $44$. The other number is:

The number of prime factors in $2^{222} \times 3^{333} \times 5^{555}$ is:

The number of prime factors in the expression $(6{)}^{10} \times (7{)}^{17} \times (11 {)}^{27}$ is:

Three measuring rods are $64 \mathrm{cm}$, $80 \mathrm{cm}$ and $96 \mathrm{cm}$ in length. The least length of cloth that can be measured an exact number of times, using any one of the above rods is?

The product of two numbers is $1600$ and their HCF is $5$. The LCM of the numbers is:

About the number of pairs which have $16$ as their HCF and $136$ as their LCM, we can definitely say that:

The total number of prime factors of the product $(8{)}^{20} \times (15{)}^{24} \times (7{)}^{15}$ is: