'Common prime factors' presentation slideshows

Our Lesson

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Splash Screen

Splash Screen. Objectives Vocabulary Example 1 Example 2 Example 3 Quick Quiz. Lesson Menu. Identify all the factors of a given number. To understand and distinguish prime and composite numbers To find prime factorizations To identify multiples

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2-5

2-5. Greatest Common Factor. Course 2. Warm Up. Problem of the Day. Lesson Presentation. 2-5. Greatest Common Factor. Course 2. Learn to find the greatest common factor of two or more whole numbers. 2-5. Greatest Common Factor. Course 2. Insert Lesson Title Here. Vocabulary.

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Factor

Factor. A factor of an integer is any integer that divides the given integer with no remainder. Prime Number. A prime number is a natural number greater than one that has exactly two positive factors: one and itself. Exercise. Write the prime factorization of the number. 12. 2 2 x 3.

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Warm Up

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Factoring Polynomials

Factoring Polynomials. The Greatest Common Factor. Factors. Factors (either numbers or polynomials) When an integer is written as a product of integers, each of the integers in the product is a factor of the original number.

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Warm-up

Warm-up. Find the prime factorization for the following: 56 2) 75 3) 110 4) 90 5) What is a number divisible by 2,3,4,5,6,8,9,and 10? (Answers may vary). Warm-up Answer. 1) 2 3 * 7 2) 3 * 5 2 3) 2 * 5 * 11 4) 2 * 3 2 * 5. Vocabulary.

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Prime Factorization

Prime Factorization. 5 th Grade Math. Prime Factorization Of a Number.

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California Standards

California Standards. NS2.4 Determine the least common multiple and the greatest common divisor of whole numbers; use them to solve problems with fractions (e.g. to find a common denominator to add two fractions or to find the reduced form of a fraction). Vocabulary. multiple

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Prime Factorization

Prime Factorization. 7 th Grade Math. Prime Factorization Of a Number.

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EXAMPLE 2

2. 2. 5. 3. 3. 180 =. 2. 3. 7. 126 =. 3. ANSWER. The common prime factors of 180 and 126 are 2 , 3 , and 3 . So, the greatest common factor is 2 3 2 = 18. EXAMPLE 2. Using Prime Factorization to Find the GCF.

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Using the GCF to Solve Problems

ANSWER. The most groups that can be formed is 12 . Dividing the number of each type of musician by 12 , you find each group will have 4 violinists, 2 violists, and 3 cellists. Example 2. Using the GCF to Solve Problems.

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Lesson 2-3 Example 4

36. 24. 6. 6. 6. 4. 6. 2. 3. 2. 3. 2. 3. 2. 2. 2. 3. 2-3. Lesson 2-3 Example 4. Find the GCF of 6, 24, and 36 by using prime factors. Step 1 Write the prime factorization. 2-3. Lesson 2-3 Example 4. Find the GCF of 6, 24, and 36 by using prime factors.

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Prime Factorization

, GCF. & LCM. 18. 24. 3. 6. 4. 6. *. 2. 3. 2. 3. 2. 2. 2. 3. *. *. *. 6. 2. 2. 3. Greatest Common Factor GCF = Product of ALL common prime factors. Least Common Multiple LCM = Product of GCF and remaining prime factors. Prime Factorization. GCF =. = 6. LCM =.

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