HCF and LCM
HCF and LCM: Overview
This topic covers concepts such as Methods to Find HCF, Division Method to Find HCF, Shortcut for Finding HCF, Methods to Find LCM, Common Division Method to Find LCM, Shortcut for Finding LCM, HCF and LCM of Fractions, etc.
Important Questions on HCF and LCM
What is the number of divisors of $360$?


What is the least number which when divided by leaves remainder in each case?

The greatest number that can divide and leaving remainder of and respectively.

What will be the remainder when is divided by ?

First even natural numbers are multiplied with the first multiples of . Find out the number of zeroes at the end of the product.

HCF and LCM of two numbers are and respectively. If the numbers are between and , the sum of the numbers is _____.

The sum of two numbers is and their HCF is. How many pairs of such number are there?

From the given details estimate the number of people affected by Dengue fever in a particular locality in the year .
Year | ||||||
No of People |

What is the remainder when [] is divided by ?

The greatest -digit number exactly divisible by is -


How many number lie between which divisible by .



Traffic lights at three different points are changing respectively at and seconds. If all the three lights are changed together at hours, then at what time does the next change take place together?

Find the least number of square tiles required to pave the ceiling of a room is long and broad :

Traffic lights at three different points are changing respectively at and seconds. If all the three lights are changed together at hours, then at what time does the next change take place together?

A florist bought n number of flowers for , and sell a certain number of flowers at and gain of profit. Find the number of flowers left:

Find the least number of square tiles required to pave the ceiling of a room is long and broad :
