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Prime Factorization.. Prime number Composite numbers Prime factorization Factor tree.

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Presentation on theme: "Prime Factorization.. Prime number Composite numbers Prime factorization Factor tree."— Presentation transcript:

1 Prime Factorization.

2 Prime number Composite numbers Prime factorization Factor tree

3 Prime number a number that has exactly two factors 1 and itself

4 Composite number A number that is not prime A number that has more than two factors 4 (1, 2, 4) 24 (1, 2, 3, 4, 6, 8, 12, 24) 18 (1, 2, 3, 6, 9, 18)

5 Prime factorization writing a number as a product of prime numbers.

6 Find the prime factorization of × × ×××× × The Prime Factorization is 2×2×3×5×5 or 2 2 × 3 × 5 2 3

7 Find the prime factorization of × × ××× × The Prime Factorization is 2×2×2×2×7 or 2 4 × ×××2×

8 Find the prime factorization of × × ××× × The Prime Factorization is 2×2×3×3×3×3 or 2 2 × ×××3×3×

9 ×2×3×5×5 2×2×2×2× Make a Venn diagram from the prime factorization of 112 and 300. The GCF is the product of the intersection numbers. (2 × 2 = 4) The LCM is the product of ALL the numbers in the Venn diagram. LCM: 2 × 2 × 2 × 2 × 3 × 5 × 5 × 7 = 8400

10 The LCM is the product of ALL the numbers in the Venn diagram. LCM: 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 7 = 9072 The GCF is the product of the intersection numbers. (2 × 2 = 4) ×2×3×3×3×3 2×2×2×2× Make a Venn diagram from the prime factorization of 112 and 324.

11 The GCF is the product of the intersection numbers. (2 × 2 × 3 = 12) The LCM is the product of ALL the numbers in the Venn diagram. LCM: 2 × 2 × 3 × 3 × 3 × 3 × 5 × 5 = ×2×3×5×5 2×2×3×3×3× Make a Venn diagram from the prime factorization of 324 and 300.

12 ×2×3×5×5 2×2×3×3×3×3 2×2×2×2×

13 7530 3×5×52×3× Make a Venn diagram from the prime factorization of 30 and 75. The GCF is the product of the intersection numbers. (3 × 5 = 15) × ×× × ×× The LCM is the product of ALL numbers. (2 × 3 × 5 × 5 = 150)

14 What does it mean if the Venn diagram of the prime factorizations of two numbers had no numbers in the intersection? Find two numbers that would have a Venn diagram like this.

15 Find the prime factorization of -630.

16

17 Homework


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