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# 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
4 years, 8 months ago

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MathAppears as
Remember to wrap math in $$...$$ or $...$ to ensure proper formatting.
2 \times 3 $$2 \times 3$$
2^{34} $$2^{34}$$
a_{i-1} $$a_{i-1}$$
\frac{2}{3} $$\frac{2}{3}$$
\sqrt{2} $$\sqrt{2}$$
\sum_{i=1}^3 $$\sum_{i=1}^3$$
\sin \theta $$\sin \theta$$
\boxed{123} $$\boxed{123}$$

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

- 4 years, 7 months ago

Great job!

Staff - 4 years, 7 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 :))

- 4 years, 7 months ago

- 4 years, 7 months ago

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

- 4 years, 7 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 - 4 years, 7 months ago

"put it in lowest terms" means what?

- 4 years, 7 months ago

Put Numerator and Denominator to their Positive Coprime Integers

- 4 years, 7 months ago

thanks.....

- 4 years, 7 months ago

Can you explain what WLOG stands for?

- 4 years, 7 months ago

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

- 4 years, 7 months ago

Thanks.

- 4 years, 7 months ago