64, 128, 192, 256.
32, 64, 96, 128
64, 128, 192, 256, 320, 384, 448, 512, 576, 640 are the first ten multiples of 64.1,2,4,6,8,32,64 are the factors of 64, not the multiples.
64: 128, 192, 256
6,12,18,26 they are the first four multiples of six
64,128,192,256,320,384,448,512,576,640
All the multiples of 64 are also multiples of 32.
All multiples of 64 are multiples of 8.
The first four are; 4,8,12,16
The lowest common multiple is 18. The first four common multiples are thus the first four multiples of 18 and are: 18, 36, 54 and 72.
The multiples of 64 are: 64, 128, 192, 256, 320, 384.... 448,512,576,640
The lowest common multiple of 64 and 72 is 576. Therefore, the common multiples of 64 and 72 are the multiples of 576. The first five are as follows: 576 1152 1728 2304 2880
The first four multiples of 20 are: 20 40 60 80