Q: Make a factor tree for 45?

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You cannot really make a factor tree for 7 because it is already a prime number.

27 3,9 3,3,3

9x9=81. Proving that one of the factor trees for 81 is 9xp.

If a multiple of 10 were a factor of 45, then both '10' and the multiple would be factors of 45. Since 10 is not a factor of 45, there is no such number.There are no multiples of 10 that are factors of 45.

There is no multiple of 10 that's a factor of 45.

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45 15,3 5,3,3

1,3,5,9,15,45

Because 45 is not a factor of 60.

36 18,2 9,2,2 3,3,2,2 45 15,3 5,3,3

45 15,3 5,3,3

Use a factor tree. 45 15,3 5,3,3

45 15,3 5,3,3

45 15,3 5,3,3

45 doesn't divide into 60 evenly.

45 15,3 5,3,3

Because 45 is not a factor of 60.

Use a factor tree. 45 15,3 5,3,3