MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
The greatest common factor of two numbers is the largest number that multiplies into both values. We can find this by using factor trees: first, create factor trees for both given numbers. Then look for what factors, or "leaves" that they have in common. The product of these leaves is the greatest common factor of the original two numbers.
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