if you multiply 21 and 9 it equals 189
3 times with a remainder of 1
1, 3, 7, 9, 21, 27, 63, 189.
9 can go into 64 seven times. 9*7=63.
1, 3, 7, 9, 21, 27, 63, 189.
if you multiply 21 and 9 it equals 189
189 ÷ 60 = 3 with remainder 9
21
189
21 * 9 = 189
1, 3, 7, 9, 21, 27, 63, 189.
90, 99, 108, 117, 126, 135, 144, 153, 162, 171, 180, 189, 198, 207, 216, 225, 234, 243, 252, . . .
3 times with a remainder of 1
1, 3, 7, 9, 21, 27, 63, 189.
9 can go into 64 seven times. 9*7=63.
27
1, 3, 7, 9, 21, 27, 63, 189.