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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth Find the prime factors of 18. To find prime factors draw a factor tree. 18 Split 18 into a pair of factors is a prime number – so this branch is finished Split 9 into a pair of factors. 3 3 The prime factors of 18 are 2 x 3 x 3 The prime factors of 18 are 2 x 3 2

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth Find the prime factors of Split 18 into a pair of factors is a prime number – so this branch is finished Split 6 into a pair of factors. 2 3 The prime factors of 18 are 2 x 3 x 3 The prime factors of 18 are 2 x 3 2

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth Find the prime factors of Split 20 into a pair of factors Split 10 into a pair of factors. 2 5 The prime factors of 20 are 2 x 2 x 5 The prime factors of 20 are 2 2 x 5

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth Find the prime factors of Split 4 into a pair of factors. 2 2 The prime factors of 20 are 2 x 2 x 5 The prime factors of 20 are 2 2 x 5

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth Find the prime factors of The prime factors of 24 are 2 x 2 x 2 x 3 The prime factors of 24 are 2 3 x 3 2 3

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth Find the prime factors of The prime factors of 24 are 2 x 2 x 2 x 3 The prime factors of 24 are 2 3 x 3 2 2

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth Find the prime factors of The prime factors of 24 are 2 x 2 x 2 x 3 The prime factors of 24 are 2 3 x 3 2 2

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth Find the prime factors of The prime factors of 24 are 2 x 2 x 2 x 3 The prime factors of 24 are 2 3 x 3 2 2

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth Find the prime factors of these numbers: Remember to find prime factors you draw a factor tree!

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth The prime factors of 12 are 2x2x3 or 2 2 x 3

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth The prime factors of 16 are 2x2x2x2 or 2 4

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth The prime factors of 30 are 2 x 3 x 5

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth The prime factors of 22 are 2 x 11

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth The prime factors of 28 are 2x2x7 or 2 2 x 7

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth The prime factors of 64 are 2x2x2x2x2x2 or

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth The prime factors of 100 are 2x2x5x5 or 2 2 x

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth The prime factors of 125 are 5x5x5 or

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth The prime factors of 240 are 2 4 x 3 x

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Objective: To write a number as a product of it’s prime factors. Prime Factors Robert Smyth The prime factors of 144 are 2 4 x

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