81: 1, 3, 9, 27, 81
87: 1, 3, 29, 87
40: 1, 2, 4, 5, 8, 10, 20, 40
99: 1, 3, 9, 11, 33, 99
Factors of 81 are 1, 3, 9, 27, and 81 Factors of 99 are 1, 3, 9, 11, 33, and 99 The GCF of 81 and 99 is 9
The factors of 81 are 1, 3, 9, 27, and 81. The factors of 99 are 1, 3, 9, 11, 33, and 99.
The common factors of 81 and 99 are: 1, 3, 9
81, 84, 87, 90, 93, 96, 99
The median is 87.
That's an infinite list. 81, 83, 85, 87, 89, 91 and so on.
99
45: 1, 3, 5, 9, 15, 45 81: 1, 3, 9, 27, 81 99: 1, 3, 9, 11, 33, 99
84, 87, 90, 93, 96, 99
84, 87, 90, 93, 96, 99, 102, 105, 108.
99* 81+99=180*
99-87 = 12