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8 -1 A number that has precisely 2 factors, 1 and also itself. *2 is the first prime number. A totality number the has an ext than two factors. A number is either element or COMPOSITE. It cannot be both.




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8 -1 Let’s uncover all the prime numbers up to 150…. • PLEASE keep THIS HANDOUT! girlfriend WILL be able to USE the ON all TESTS/QUIZZES!!!! • YOU acquire 1 COPY.


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8 -1 recognize which element numbers multiply together to do the initial number. The technique we will use is the: variable TREE


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8 -1 variable Tree of 48. Steps: 1. Find any kind of 2 factors of the initial number. (Factors: 2 number multiplied together) 2. Uncover 2 determinants of each new number. 3. Proceed until you are left with only prime numbers. ANSWER: 24 ∙ 3


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8 -1 1. Uncover the element factorization that 90 2. Uncover the prime factorization that -20


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8 -1 3. Discover the element factorization that 42 4. Discover the element factorization that -140


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8 -1 5. Find the prime factorization of 56. 6. Find the element factorization the -36




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8 -1 of two or an ext integers is the biggest number the is a variable of every one of the integers. A. K. A: the largest # that will certainly divide into every one of the numbers evenly.


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8 -1 What is the GCF the the following: 1. 16 and also 24 -Factors that 16: -Factors of 24: 2. 42 and 56 -Factors the 42: -Factors that 56: