21
Here is one example: 20, 40, 60, 80, 100, 120, 140, 160, 180.
16, 32, 48. Since 16 is divisible by 4. Every multiple of 16 is also a multiple of 4, so I just took the first 3 multiples of 16.
The first five multiples of 4 are 4, 8, 12, 16 and 20. For them to be common, they need to be compared to another set of multiples.
The first 4 multiples of 4 are: 4, 8, 12, and 16.
The common multiples of 16 and 20 are 80, 160, 240, 320, 400, 480, 560, 640, and so on.
Multiples of 4: 4, 8, 12, 16, 20 Multiples of 10: 10, 20 Therefore, the answer is 20. (:
20 and 16
4
They are all the multiples of 16.They are all the multiples of 16.They are all the multiples of 16.They are all the multiples of 16.
For 16 and 20, 80,160,240 For 30 and 33, 330,660,990
21
4, 8, 12, 16, 20
80, 160, 240 and so on.
4, 8, 12, 16, 20
4, 8, 12, 16 and 20
The multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, . . .The multiples of 16 are 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, . . .