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Greatest Common Factors  Problem 4
Alissa Fong
Alissa Fong
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
Finding the greatest common factor of two integers means finding the largest number that multiplies into both of the numbers that you were given. One way to do this is to break both numbers into their "prime factorization" using a number tree. From there, circle any factors, or "leaves" that are the same in both trees. The product of those circled numbers will give you the greatest common factor.
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Alissa Fong
M.A. in Secondary Mathematics, Stanford University
B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
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Greatest Common Factors
Problem 1 11,694 viewsFind the greatest common factor of
a) 24 and 60b) 18x² and 27x³ 
Greatest Common Factors
Problem 2 9,419 viewsFactor:
a) 5x³ + 10xb) 6p³ − 12p² − 60p 
Greatest Common Factors
Problem 3 7,627 viewsFactor:
3x(x + 6) − 10(x + 6) 
Greatest Common Factors
Problem 4 1,456 views 
Greatest Common Factors
Problem 5 1,441 views 
Greatest Common Factors
Problem 6 1,402 views 
Greatest Common Factors
Problem 7 1,278 views 
Greatest Common Factors
Problem 8 854 views
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