Embibe Experts Solutions for Chapter: HCF and LCM, Exercise 15: REVIEW EXERCISE

Find the smallest number that has $2, 5$ and $7$ as its prime factors.

Find the prime factorisation of the greatest three-digit number.

Determine whether the following number is prime or composite.

$649$

A box contains an assortment of three types of chocolate bars. It has $18$ bars with almonds, $24$ bars with hazelnuts and $30$ bars with peanuts. The chocolate bar are shared among some students. Each student gets only one type of chocolate bar and every student gets the same number of chocolate bars. If each student gets the greatest number of chocolate bars, how many students will get chocolate bars with peanuts?

A rectangular board measures $630 cm$ by $396 cm$. It is divided into small squares of equal size. Find the largest possible length of the side of a square.

A rectangular board measures $630 cm$ by $396 cm$. Find the least total number of squares.

A rectangular board measures $630 cm$ by $396 cm$. What is the other largest possible length of the side of a square?

A rectangular board measures $630 cm$ by $396 cm$. Find the total number of squares with the other largest possible length of the side of a square.