180
90,2
45,2,2
15,3,2,2
5,3,3,2,2
2^2 x 3^2 x 5 = 180
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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
20 is a factor of 180 180 is a multiple of 20
The Greatest Common Factor of 36, 54, 180: 18
81 factors to [3 3 3 3] 180 factors to [2 2 3 3 5] Common factors are [3 3] Factor out a 9 Simplest form is 9/20 ■
As a product of its prime factors in exponents: 22*32*5 = 180 So 5 is its largest prime factor.