Best Answer

a factor is actually like a tree with branches.

just divide 90 by prime whole numbers until you get all prime numbers.

first divide 90 by 2

90/2 = 45 [2 is a prime whole number]

45/5 = 9 [5 is a prime whole number]

9/3 = 3 [3 is a prime whole number]

since your last number is 3 you cant divide anymore to get a smaller prime whole number.

so now use the numbers you have... 90,45,9,2,3,3, and 5 to make your factor tree.

start with 90 at top. make two branches with 45 and 2 on the ends. make two more branches from 45 with 9 and 2 on the ends. make two more branches from the 9 with a 3 and 3 on the ends. all of the ends of your branches now have prime whole numbers and you are finish!

90

45,2

15,3,2

5,3,3,2

Q: What is the Factor tree for 90?

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90 45,2 15,3,2 5,3,3,2

90 10 9 5 5 3 3

7 is not a factor of 90. It does not divide into 90 evenly.

IT IS PRIME there is no factor tree

Since 18 is a factor of 90 and it is the largest factor of itself, the greatest common factor of 18 and 90 is 18.Since 18 is a factor of 90, it is automatically the GCF.

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90 45,2 15,3,2 5,3,3,2

90 45,2 15,3,2 5,3,3,2

90 45,2 15,3,2 5,3,3,2

90 45,2 15,3,2 5,3,3,2

no because 30x2 is 60 not 90

90 10 9 5 5 3 3

Poop poopy blah blah

90 45,2 15,3,2 5,3,3,2 90 10,9 5,2,9 5,2,3,3

The factor tree for 90 is as follows.90/\9â€¢10/\ /\3â€¢3 5â€¢2So 90 as a product of its prime factors is: 2 â€¢ 3 â€¢ 3 â€¢ 5.

This is the factor tree of 270: 270 / \ 3 90 / \ 3 30 / \ 3 10 / \ 2 5 The 3's, 2, 5 would be prime so you would circle them.

244 62 2 2 3909 103 3 2 5The only factors common to 24 and 90 are 2 and 3, so the greatest common factor is their product, 6.

7 is not a factor of 90. It does not divide into 90 evenly.