The first four multiples of 81 are 81, 162, 243, and 324.
81, 162, 243, 324
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
1, 9, and 81 are the only multiples of 81
-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
27, 54, 81, 108, 135
27, 54, 81, 108, 135
162 243 324 405 486
27, 54, 81, 108 & 135
-15