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Prime and Composite Numbers: Prime – number that has only 2 factors EX: 13 factors are 1 and 13 1 and itself composite – number that has more than 2 factors EX: 24 factors are 1, 2, 3, 4, 6, 8, 12, 24 infinite factors 0 and 1 are neither prime nor composite only 1 factor Venn Diagram: be able to fill in a Venn diagram know the different regions(areas) of a Venn diagram Prime Factorization: factor tree EX: 48 6 8 2 32 4 repeated division 3 48 2 16 2 8 2 4 2 2 2 Prime Factorization = 24 x 3 There is only 1 prime factorization for any whole number greater than 1. Rectangular Models: know how to make a model for a given number EX: 16 1 x 16 4 x 4 = 42 2x8 Least Common Multiple: LCM know how to find the LCM of pair of numbers List the multiples: EX: 12 and 15 12: 12, 24, 36, 48, 60 15: 15, 30, 45, 60 Venn Diagram: EX: 12 and 15 Multiples of 12 12 24 36 48 Multiples of 15 60 15 30 45 LCM = 60 Prime Factorization in Exponential Form: EX: 12 22 x 3 15 3x5 Use the highest power of each factor: 22 x3 x 5 = 60 LCM= 60 Greatest Common Factor: GCF know how to find the GCF of a pair of numbers List the factors EX: 12 and 15 12) 1, 2, 3, 4, 6, 12 15) 1, 3, 5, 15 GCF = 3 Venn Diagram: Factors of 12 2 4 6 12 Factors of 15 1 3 5 15 GCF = 3 Using Prime Factorization: EX: 12 = 2 x 2 x 3 15 = 3 x5 Find the factors they have in common GCF = 3 Order of Operation: P. ( ) parentheses E. 32 exponents M. D. multiplication OR division (left to right) EX: 24 – 6 x 3 + 12 Order of operation A. S. addition OR subtraction (left to right) x, -, + Factors and Multiples: know how to find the factors of a number EX: 24: 1, 2, 3, 4, 6, 8, 12, 24 (all the #’s that are divisors of 24) know how to find the multiples of a number (repeated addition) EX: 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88 … Review all quizzes, mini-quizzes, classwork, and notes