Find LCM and HCF of integers using Prime Factorization

Algebra | Relation between LCM, HCF and Product of two numbers

http://www.learncbse.in/ncert-class-10-math-solutions/

http://www.learncbse.in/ncert-solutions-class-10th-maths-chapter-1-real-numbers/

http://www.learncbse.in/rd-sharma-class-10-solutions-chapter-1-real-numbers/

In this video, how to find the prime factors of given numbers using factor tree is explained.LCM and HCF of two numbers is obtained by prime factorization of numbers.Basic Algebra is included.That is Find the LCM and HCF of two numbers by the prime factorisation method.

HCF is the Product of the smallest power of each common prime factor in the numbers.

LCM is the Product of the greatest power of each prime factor, involved in the numbers.

Fundamental Theorem of Arithmetic: Every composite number can be expressed or factorised as a product of primes, and this factorisation is prime factorisation.

The prime factorisation of a natural number is unique, except for the order of its factors.

00:02 Q3. Find the LCM and HCF of the following integers by applying the prime factorisation

method.

(i) 12, 15 and 21 (ii) 17, 23 and 29 (iii) 8, 9 and 25

00:29 Write prime factor of 12, 15 and 21.

01:23 HCF of 12, 15 and 21 = Product of the smallest power of each common prime factor in the numbers

LCM of 12, 15 and 21 = Product of the greatest power of each prime factor, involved in the numbers .

02:56 Find the LCM and HCF of 17, 23 and 29

5:03 Find the LCM and HCF of 8, 9 and 25

Follow us:

On Twitter

https://twitter.com/cbseguesspapers

Linkedin

https://www.linkedin.com/profile/view?id=396397973&trk=nav_responsive_tab_profile

Pinterest

https://in.pinterest.com/LearnCBSE/

Facebook

https://www.facebook.com/cbseguesspapers

Youtube LearnCBSE.in

https://www.youtube.com/user/CBSEPapers

Wordpress

https://cbselabs.wordpress.com/

learncbse.in

CBSE solutions for class 10 maths Chapter 1 Real Numbers Exercise 1.4

CBSE class 10 maths NCERT Solutions Chapter 1 Real Numbers Exercise 1.2 | Euclid Division Lemma

CBSE class 10 maths NCERT Solutions Chapter 1 Real Numbers

Solutions for CBSE class 10 Maths Real Numbers

NCERT solutions for class 10 maths Real Numbers

NCERT solutions for CBSE class 10 maths Real Numbers Ex 1.1

CBSE class 10 maths Solutions Real Numbers Exercise 1.4

Common core Math Real Numbers

ICSE Class 10 Maths

Tagged under: ncert solutions,learncbse.,gyanpub,Prime Factorization,Find LCM,Find LCM HCF,integers,Factorization,Arithmetic,Fundamental Theorem,Real Numbers

Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.

Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip

Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans

1. Students enter a simple code

2. You play the video

3. The students comment

4. You review and reflect

* Whiteboard required for teacher-paced activities

With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.

Quickfire

Carry out a quickfire formative assessment to see what the whole class is thinking

Discuss

Create interactive presentations to spark creativity in class

Team Up

Student teams can create and share collaborative presentations from linked devices

Clip

Turn any public video into a live chat with questions and quizzes

Tried out the canvas response option on @SpiralEducation & it's so awesome! Add text or drawings AND annotate an image! #R10tech

Using @SpiralEducation in class for math review. Student approved! Thumbs up! Thanks.

Absolutely amazing collaboration from year 10 today. 100% engagement and constant smiles from all #lovetsla #spiral

Students show better Interpersonal Writing skills than Speaking via @SpiralEducation Great #data #langchat folks!

Dr Ayla Göl
@iladylayla

A good tool for supporting active #learning.

The Team Up app is unlike anything I have ever seen. You left NOTHING out! So impressed!