# HCF and LCM

## HCF Methods of Calculation and Formula

In this post we will discuss different methods for HCF calculation. Choose the one which you feel comfortable solving but please don’t get confused with the choices as it may only disturb your preparation.Just check all the methods and select the one which suits your temperament HCF using Prime Factorization Method This is the basic …

## LCM Concepts- When ratio of numbers is given

Question 1 Ratio of two numbers is 2:3 and their LCM is 54. Find the sum of two numbers

## LCM Application Questions

Question 1 Six bells commence tolling together and toll at interval of 2, 4, 6, 8, 10, 12 seconds. In 30 mins, how many times do they toll together?

## Find HCF when sum of numbers is given

In this post we will understand question when the sum of number and their HCF is given. All the questions are solved step by step so that you can understand the concept better.Also remember that HCF/GCD/GCF all are same thing so don’t get confused with the different terms used. HCF and Sum of Numbers Its …

## Lowest Common Multiples (LCM) : Basics

In this post we will try to understand what is Least Common Multiple (LCM) and how to calculate LCM step by step. This concept is important because its questions are repeatedly asked in competitive exams. LCM is basically smallest multiple of given set of numbers. Let us understand this concept with the help certain examples …

## HCF and the product of two numbers

In this post we will understand how to find possible numbers when the product of two numbers and their HCF is given. This is a type of application question from the chapter of HCF and LCM and is important enough to study for the entrance exams. In the following post i have tried to explained …

## HCF Questions (Level 01)-Part 1

In this section we will discuss how to calculate HCF/GCD of numbers given in fraction or decimal form. Solving HCF of regular number is straightforward but if numbers are in form of decimals, you need different technique to solve the problem. The formula for HCF of Fraction is written as: Please remember this formula as …

## HCF Shortcut Method

If you are preparing for any competition exam, you need to understand that there is a time limit for each exam within which you have to solve respectable amount of question. In order to stand a chance in cut throat competition, it is important for you to get acquainted with the shortcut method of solving …

## HCF (GCD) : Definitions and Basics

In this post we will understand meaning of HCF/GCF and its significance in competition exams. After that we will also see some examples of HCF calculation for your conceptual understanding. What is the full form of HCF? Full form of HCF is Highest Common Factor.HCF is also known as GCD or GCFGCD => Greatest Common …