Please teach me how to find the greatest common divisor.

They are my best friends.

He is good at solving division problems.

We should respect each other mutually.

He continued his journey to find the truth.

I will work using this laptop.

Euclidean geometry is a branch of mathematics that studies the shapes of planes and spaces.

Euclidean geometry forms the foundation of geometry.

He started calculating to obtain the ratio of the two numbers.

You need to use your head to solve this problem.