In the GCD1, we learned the meaning of **common divisors**. We continue studying the concept in this video and add a new learning namely identifying the greatest among the the common divisors of two or more numbers. The greatest among the common divisors of two or more number is called the **Greatest Common Divisor** (GCD). It is also called the **Greatest Common Factor** (GCF) since factor is synonymous in meaning with factor in this context.

Watch the video above, and then answer the practice exercise below. Continue reading