Find the Greatest Common Factor:1. https://youtu.be/fjnLeXpsvJU2. https://youtu.be/PaaVlRKntew3. https://youtu.be/gi3L-Xa4i2IFind the Least Common Denominator:1. https://youtu.be/9z6iZOu0kK42. https://youtu.be/YUyQHjI8tVI