GRADE: X

SUBJECT: Maths

READING SECTION:

HCF and LCM

HCF stands for Highest Common Factor

LCM stands for Lowest Common Multiple

HCF = Product of their common prime

factors

LCM = Products of their common

prime factors and remaining factors

Worked out Examples:

Use the formula of 𝑎2 + 𝑏2

= (a+b)2 − 2𝑎𝑏

Exercise: TYPE ONE

Type Two

Type Three (Mixed)

Contact Person:

Name: Ram Prasad Dhungana

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