Finding GCF (Greatest Common Factor)

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Presentation transcript:

Finding GCF (Greatest Common Factor) Lesson 4-3

Math Vocabulary GCF (Greatest Common Factor): The highest number that can divide INTO two or more given numbers

Finding GCF When finding GCF… finding the highest #, the given number(s) can be divided by… (Helpful hint: usually = the smallest given # or smaller)

Finding GCF Find the GCF of 40 and 60 can GCF = 40 must be less than 40 GCF = 20

Finding GCF Find the GCF of 6a³b and 4a²b GCF of #s Common variable(s) Lowest exponent of each variable GCF = 2a²b

Finding GCF Find the GCF of 12r³s⁵t² and 8r²s⁴t⁸ GCF of #s Common variable(s) Lowest exponent of each variable GCF = 4r²s⁴t²

Practice Find the GCF 8, 20 12a, 15bc 15m²n, 45m 14fg³h⁹, 35f ⁵h⁴

Homework p. 183-184 #11-15, 29-44, 58-61