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GROWING A FACTOR TREE

GROWING A FACTOR TREE. 18. 10. Or You might notice that 180 has a ZERO in its ONES PLACE which means it is a multiple of 10. SO… 10 x  = 180 10 x 18 = 180. Or You might notice that 180 has a ZERO in its ONES PLACE which means it is a multiple of 10. SO… 10 x  = 180. 180.

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GROWING A FACTOR TREE

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  1. GROWING A FACTOR TREE

  2. 18 10 OrYou might notice that 180 has a ZERO in its ONES PLACE which means it is a multiple of 10. SO…10 x  = 180 10 x 18 = 180 OrYou might notice that 180 has a ZERO in its ONES PLACE which means it is a multiple of 10. SO…10 x  = 180 180 You might see that 180 is an EVEN NUMBER and that means that 2 is a factor… 2 x  = 180 ? Can you think of one FACTOR PAIR for 180 ? This should be two numbers that multiply together to give the Product 180. Can we grow a tree of the factors of 180?

  3. 18 10 180 NOW You have to find FACTOR PAIRSfor 10and18 We “grow” this “tree” downwards since that is how we write in English (and we can’t be sure how big it will be - we could run out of paper if we grew upwards).

  4. 2 5 6 3 180 Find factors for 10 & 18 18 10 2 x 5 = 10 6 x 3 = 18

  5. 180 18 10 2 5 6 3 3 2 5 2 3 Since 2 and 3 and 5 are PRIME NUMBERS they do not grow “new branches”. They just grow down alone. Since 6 is NOT a prime number - it is a COMPOSITE NUMBER - it still has factors. Since it is an EVEN NUMBER we see that: 6 = 2 x  ARE WE DONE ??? 3

  6. 2 5 2 3 3 3 5 6 2 10 18 180 … and if we flip it over we can see why it is called a tree

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