The number is 1.
The Greatest Common Factor (GCF) of 27, 81, and 54 is 27.
No, 18 is not a factor of 81.
1, 2, 3, 6, 9, 18.
At present there are 54 independent countries in (or on the continent) of Africa.
9 243 - 81 = 162 81 - 27 = 54 162 = 54 * 3 54 = 18 * 3 27 - 18 = 9
54
135
The lowest whole number that goes into 35, 81, and 15 is one. There is no larger number.
It is 54 plus 27 = 81
54
9*9=81
1, 3, 9, 27.
The number is 1.
81
HCF(54, 16) = 2
6 and 9 both go into 54.