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

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Presentation transcript:

Prime Factorization.

Prime number Composite numbers Prime factorization Factor tree

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

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)

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

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

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

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

×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

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.

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.

×2×3×5×5 2×2×3×3×3×3 2×2×2×2×

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)

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.

Find the prime factorization of -630.

Homework