How to easily Tackle any GCD question for primary student

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What is GCD?
The GCD of two or more integers refers to a positive number that can divide all the numbers without a remainder.

GCD synonyms
HCF – Highest Common factor

GCF– Greatest Common Factor

HCD – Highest Common divisor

How to Find GCD
You can find the GCD using 3 methods which are factoring, LCM and Long Division

Factoring method
Using the LCM method

Using Long Division
Also you can always go for some online tools to find what is gcd of 2 numbers
 
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