# Find the lcm and the hcf

In this post, we will discuss what is LCM and HCF and also solve few frequently asked questions by using simple division and multiplication method. What do mean by Factors? A factor of a number are all those numbers, which exactly divide the given number. Here we are going to see how to find highest common factor. We can find H. F any two or more numbers using ladder diagram method. Now we can see the steps to be followed while using ladder diagram method to find H. M of any two or more numbers. Put the given numbers inside the "L" shape Step 2: We have to split the given number by prime numbers only. Given below will be helpful to find the prime number which exactly divides the given number. A number which ends with 0, 2, 4, 6 and 8 is divisible by the smallest prime number 2.

A number which ends with 0 or 5 is divisible by 5 If the sum of digits of the given number is a multiple of 3, then the given number is divisible by 3. Repeat this process until get prime numbers inside the ladder.

The product of numbers out side the ladder will be the H. The product of numbers inside and out side the ladder will be the L. M of 90 and To find the H. M of 90 and 30, let us write these two numbers inside the "L" shape. Mr of 80 and After having gone through the stuff given above, we hope that the students would have understood "How to find hcf and lcm easily".

Apart from the stuff given above, if you want to know more about "How to find hcf and lcm easily", please click here Apart from the stuff given in this section, if you need any other stuff in math, please use our google custom search here.A - Find the LCM of two Numbers LCM and HCF of two integers LCM of two numbers Example 1: Find the LCM of 66 and Find the prime factorization of the two numbers.

C Programming Code to Find HCF and LCM of Two Numbers Following C program ask to the user to enter any two number to find HCF & LCM, then display the result on the screen. Finding Numbers Given Their LCM and HCF. This post consists of a method for solving questions on Finding Numbers Given Their LCM and HCF for the Maths GCSE and IGCSE Examinations.

The same method involving Prime Factorisation of the LCM is applied to 8 examples. My teacher make exercise about finding HCF and LCM with factor trees. Since I always use the quickest way to find HCF and LCM (my teacher in grade 6 teach my class so we will do UN faster), I never try using factor trees again and forget how to count it.

If the HCF is 3, then the only prime factor they share is 3 (because 3 itself is prime). The LCM = HCF x (non-common-prime-factors from each of A and B).

By factoring , I find that = 2 x 2 x 3 x 3 x 5. Now I remove the HCF and have 2 x 2 x 3 x 5 left. LCM and HCF. Find the highest common factors (HCF) and lowest common multiple (LCM) worksheet of 2 numbers. Range of numbers Numbers up to and including 20 Numbers up to and including 30 Numbers up to and including Answer sheet Include answer sheet.

LCM and HCF - WorksheetMath