There are an infinite number of multiples of any number. Therefore, it is impossible to list all the multiples of 3 and 4. A list of the first 10 multiples: Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40

There are infinitely many multiples of ten. There are infinitely many sets of 2, 3, 4, ..., infinitely many numbers that add up each one of the multiples of ten. It is, therefore, impossible to answer the question.

3, 5, 6, 9, 12, etc are all multiples of 3 3, 7, 11, 34 are not multiples of any integer. Notice the first list contains numbers that can all be divided by the same number, 3. Thie second list the numbers cannot be divided by any number except 1.

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

The multiples of 3 up to 30 are: 3,6,9,12,15,18,21,24,27,30. The multiples of 5 up to 30 are: 5,10,15,20,25,30. The only common multiples are 15 and 30. The LCM is: 30