180 90,2 45,2,2 15,3,2,2 5,3,3,2,2
360 180-,2 90,2,2 45,2,2,2 15,3,2,2,2 5,3,3,2,2,2
180 2, 90 2, 2, 45 2, 2, 5, 9 2, 2, 5, 3, 3
180 90,2 45,2,2 15,3,2,2 5,3,3,2,2 2 x 2 x 3 x 3 x 5 = 180
A factor tree is when you get a number, say, 180 and pick any numbers ( which are factors of the number), here is an example.180/ \30 6/ \ / \6 5 2 3/ \2 3When you look at the tree you see the numbers below it are factors of that number. However, you do not keep adding numbers below it if it is prime. Prime means that the number's factors are just one and the number itself (ex. 17: 1,17
180 90,2 45,2,2 15,3,2,2 5,3,3,2,2
180 90,2 45,2,2 15,3,2,2 5,3,3,2,2
180 90,2 45,2,2 15,3,2,2 5,3,3,2,2
Done correctly, all factor trees for 180 will be the same size. Since 180 has five prime factors, there will be five branches. 180 90,2 45,2,2 15,3,2,2 5,3,3,2,2
180 90,2 45,2,2 15,3,2,2 5,3,3,2,2 225 75,3 25,3,3 5,5,3,3
360 180-,2 90,2,2 45,2,2,2 15,3,2,2,2 5,3,3,2,2,2
180 90,2 45,2,2 15,3,2,2 5,3,3,2,2 2^2 x 3^2 x 5 = 180
Use a factor tree. 180 90,2 45,2,2 15,3,2,2 5,3,3,2,2 2 x 2 x 3 x 3 x 5 = 180
180 2, 90 2, 2, 45 2, 2, 5, 9 2, 2, 5, 3, 3
180 90,2 45,2,2 15,3,2,2 5,3,3,2,2 2 x 2 x 3 x 3 x 5 = 180
A factor tree is when you get a number, say, 180 and pick any numbers ( which are factors of the number), here is an example.180/ \30 6/ \ / \6 5 2 3/ \2 3When you look at the tree you see the numbers below it are factors of that number. However, you do not keep adding numbers below it if it is prime. Prime means that the number's factors are just one and the number itself (ex. 17: 1,17
The greatest common factor of 80 , 180 = 20