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GCF
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SWBAT find the gcf of two or more numbers and determine if the numbers are relatively prime Homework: GCF
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Vocabulary 1.)Prime Numbers are numbers with exactly _____ factors, 1 and itself. Examples: 2.)Composite Numbers are numbers with _______ than 2 factors. Examples:
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Vocabulary 3.)The number ______ is not prime nor composite because it only has ____ factor. 4.)The _____________ ________________ ____________________ (or gcf) of two or more numbers is the largest f actor that both numbers have in common. Example: The GCF of 12 and 18 is ________
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I Do
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I Do - You Help Find the GCF of 15 and 7 157 Relatively Prime means that the GCF of two numbers is _______
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You Do - I Help Find the GCF of 8 and 24 824 Are these numbers relatively prime?
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Partner Practice Find the GCF of 25 and 15 using factor houses
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Bachelors Practice Find the GCF of 16 and 30 using factor houses
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BP # 2 Find the GCF of 20 and 19 using factor houses
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BP # 3 Find the GCF of 12 and 24 using factor houses
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BP # 4 Find the GCF of 26 and 28 using factor houses
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BP # 5 Which set of numbers from the last few problems that you tried are relatively prime? Explain
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Masters Practice
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Exit Ticket 1.) Find the GCF of 20 and 16 using factor houses
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Exit Ticket 2. Find the GCF of 15 and 26 using factor houses
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Exit Ticket 3.) Which set of numbers from above are relatively prime? (circle one) a.20 and 16 b.15 and 26
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