It is not possible to give a sensible answer to this question. A common multiple refers to a multiple that is COMMON to two or more numbers. You have only one number in the question!
write the first three common. multiples of 3,4,5
What are three common multiples of 2 6 8
A single number cannot have common multiples.
The first three multiples of 99.
The first three multiples of 4 are 4, 8 and 12. For them to be common, they need to be compared to another set of multiples.
The first three multiples of 2 are 2, 4, 6. For them to be common, they need to be compared to another set of multiples.
The first three common multiples of 8 and 12 are 24, 48, and 72.
The first three multiples of 3 are 3, 6, 9 The first three multiples of 9 are 9, 18, 27 As the lowest common multiples of 3 and 9 is 9, the common multiples of 3 and 9 are the multiples of 9, thus: The first three common multiples of 3 and 9 are 9, 18, 27
15 & 20 have an infinite number of Common Multiples; the first three are 60, 120 and 180.
If that's 9, 14 and 21, the first three common multiples are 126, 252 and 378.
The two common multiples of three and five are: 15 and 30 ^-^
The first three multiples of 235 are 235, 470 and 705. For them to be common, they need to be compared to another set of multiples. The first three common multiples of 2, 3 and 5 are 30, 60 and 90.