The Greatest Common Factor (GCF) for two numbers is the largest of the factors that they have in common. The easiest way to understand this is to see some examples...
Find the GCF of 24 and 10:
1. List the factors of each individual number.
24- 1, 2, 3, 4, 6, 8, 12, 24
16- 1, 2, 4, 8, 16
2. Find the highest factor that the two numbers have in common. This is the GCF. Answer = 4
Find the GCF of 24 and 10:
1. List the factors of each individual number.
24- 1, 2, 3, 4, 6, 8, 12, 24
16- 1, 2, 4, 8, 16
2. Find the highest factor that the two numbers have in common. This is the GCF. Answer = 4
Simple and to the point. Very nice.
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