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primefactortreeOpt

primefactortreeOpt - • Choose any 2 factors – let’s...

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Prime Factor Tree Discovering Prime Factors  of Any Number 100’s of free ppt’s from  www.pptpoint.com  library

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Definitions Prime Number – An integer whose only factors  are 1 and itself. Factor – a number that can divide another  number without a remainder. Prime Factors – an expression of numbers that  divides another integer without a remainder  where all the factors are prime.
Let’s Choose a Number Let’s use 36 Choose any 2 factors  – let’s use 9 and 4 Now let’s factor these  numbers, too Next, arrange them  from least to greatest Last, re-write as  exponents 36 4 9 x 2 2 x x 3 3 2 2 x 3 2 2 2 3 3 x x

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Let’s Try That Again! Let’s use 36 again
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Unformatted text preview: • Choose any 2 factors – let’s use 3 and 12 • Now let’s factor these numbers, too • Oops, 6 is not prime - let’s factor again! • Next, arrange them from least to greatest • Last, re-write as exponents • Look, it’s the same answer! 36 3 x x 2 6 12 3 x 3 x x 3 2 2 x 2 x 3 x x 2 3 2 2 x 3 2 Let’s Re-Cap • Composite numbers are made up of factors • In a Prime Factor Tree, the goal is to keep reducing each factor to its lowest possible prime factors • When you have all the prime factors identified, re-arrange them from least to greatest and re-write them as exponents...
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primefactortreeOpt - • Choose any 2 factors – let’s...

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