The first four multiples of 81 are 81, 162, 243, and 324.
81, 162, 243, 324
1, 9, and 81 are the only multiples of 81
The first 20 multiples of 27 are: 27, 54, 81, 108, 135, 162, 189, 216, 243, 270, 297, 324, 351, 378, 405, 432, 459, 486, 513, 540
-the first 10 multiples of 20 are 20,40,60,80,100,120,140,160,180, and 200. :)
27 54 81 108
The first four multiples of 20 are: 20 40 60 80
-15
The first 5 multiples of 4 and 20 are 20, 40, 60, 80, 100
27, 54, 81, 108, 135
27, 54, 81, 108, 135
162 243 324 405 486