45 15,3 5,3,3
45 15,3 5,3,3
36 18,2 9,2,2 3,3,2,2 45 15,3 5,3,3
81 Divide by three. 27,3 Divide by three. 9,3,3 Divide by three. 3,3,3,3 Stop.
45% can be represented as 45/100 or 0.45 You ask yourself if 45/100 is 81, what would be the value for 100/110 (which is 1) and you find that by dividing 81 by 45/100, which is the same as dividing 81 by 0.45 Hence the number is 81/0.45 = 8100/45 = 900/5 = 180
The greatest common factor of 81 and 45 is 9Factors of 45: 1 3 5 9 15 45Factors of 81: 1 3 9 27 81The GCF of 45 and 81 is 9It is: 9
9x9=81. Proving that one of the factor trees for 81 is 9xp.
GCF (45, 81, 90) = 9
81 27,3 9,3,3 3,3,3,3
81 27,3 9,3,3 3,3,3,3
81 27,3 9,3,3 3,3,3,3
81 27,3 9,3,3 3,3,3,3
The greatest common factor is 9
Because 45 is not a factor of 60.
It is: 9
The GCF is 9.
The factors of 81 are: 1, 3, 9, 27, 81.