They are members of the infinite set of numbers of the form 20*k where k is an integer. Since the set is infinite, it is not possible to list them.
They are all the multiples of 20.
60 and its multiples
20 pinkgal333:20, 40, 60 are all common multiples.
20 and 40
4, 6 and 10
Any multiple of 20.
The common multiples of any numbers are multiples of their lcm. The lcm of 2, 3, 4, 5 & 6 is 60 Thus the next four common multiples are 2 x 60, 3 x 60, 4 x 60 & 5 x 60 which are 120, 180, 240 & 300
20, 40, 60
Any multiple of 20.
The common multiples of 2 and 5 are numbers that can be divided evenly by both 2 and 5. The common multiples of 2 and 5 are multiples of their least common multiple (LCM), which is 10. Therefore, the common multiples of 2 and 5 are all multiples of 10. Similarly, the common multiples of 2 and 6 are multiples of their LCM, which is 6. Therefore, the common multiples of 2 and 6 are all multiples of 6.
Yes.
Get the least common denominator of 4 and 30, using any of the methods you learned. Then multiply this by different integers, to get additional common multiples. 4 = 2 x 2 30 = 2 x 3 x 5 common denominator = 2 x 2 x 3 x 5 = 60 common multiples could be 60, 120, 180, 240, ... etc
20, 40, 60