180 90,2 45,2,2 15,3,2,2 5,3,3,2,2 2^2 x 3^2 x 5 = 180
20 is a factor of 180 180 is a multiple of 20
factor tree of 216
The Greatest Common Factor of 36, 54, 180: 18
The prime factor tree of 280 is:140,270,2,235,2,2,27,5,2,2,2
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
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
180 10, 18 2, 5, 2, 9 2, 5, 2, 3, 3 180= 2,5,2,3,3
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