# Greatest Common Divisor/Least Common Multiple

Learn how to find the Greatest Common Divisor and Least Common Multiple of a set of integers.

Note by Calvin Lin
6 years, 6 months ago

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With a Great Difficulty I have got 3 stars in GCD/LCM just before the delivery of this blog !!!!

- 6 years, 6 months ago

Great job!

Staff - 6 years, 6 months ago

Can you explain what WLOG stands for?

- 6 years, 6 months ago

That stands for Without Loss Of Generality. It basically means that you're justified in imposing some new condition.

- 6 years, 6 months ago

Thanks.

- 6 years, 6 months ago

in the worked example 3 gcd(ab)=1 can you explain it why?

- 6 years, 6 months ago

Think about why this must be true. Let me put it in another way.

Given a fraction $\frac{a}{b}$, what do we do to put it in lowest terms?

Staff - 6 years, 6 months ago

"put it in lowest terms" means what?

- 6 years, 6 months ago

Put Numerator and Denominator to their Positive Coprime Integers

- 6 years, 6 months ago

thanks.....

- 6 years, 6 months ago

- 6 years, 6 months ago

Nice post Master to understanding the concept of GCD. I mean, this is including algorithm (Euclid) as one method to solve in computer science :))

- 6 years, 6 months ago