GFC+(greatest+common+factor)

= ** GCF ** = =**Is the greatest common factor that divides 2 or more numbers.** = =**To find the GCF of two numbers:** = =**List the prime factors of each number.** = =**Multiply those factors both numbers have in common.** = =**If there are no common prime factors, the GCF is 1.** = =**example :** = = = =**20 ÷ 2 30 ÷ 2 **= =**10 ÷ 2 15 ÷ 3**= =**5 ÷ 5 5 ÷ 5 **= =**1 1**=


 * 2x5=10 || 10 = GFC  ||

**Another example is:**

[|Greatest Common Factor ...The Easy Way]


** 3 x 5 are the common factors ** ** So 15 is the GCF (Greatest Common Factor) **