28, 56, 84, 112, 140.
the first five common
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.
They are the first five multiples of their lowest common multiple: 140, 280, 420, 560, 700.
The common multiples of any two (or more) numbers are multiples of their lowest common multiple (lcm). lcm(9, 11) = 99 → first five common multiples are: 99, 198, 297, 396, 495
90, 180, 270, 360, 450 28, 56, 84, 112, 140
The first five multiples of 5 are 5, 10, 15, 20 and 25. For them to be common, they need to be compared to another set of multiples.
The common multiples of 5 and 6 are the multiples of their lowest common multiple (which is 30), so there are infinitely many common multiples of 5 and 6. The first five are: 30, 60, 90, 120, 150.
30,60,90,120,150
The first five multiples of 6 are 6, 12, 18, 24 and 30. For them to be common, they need to be compared to another set of multiples.
210, 420, 630, 840, 1050 Five common multiples. Only one can be least.
28, 56, 84, 112, 140.
7, 14, 21, 28, 35