They are: 721, 721*2, 721*3, 721*4 and 721*5.
You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.
The first 5 common multiples are the first 5 multiples of their lowest common multiple (LCM) LCM(9, 10) = 90 → first 5 common multiples are 90, 180, 270, 360, 450.
The first four multiples of five: 5, 10, 15, 20
154, 308, 462, 616, and 770 are the first 5 multiples of 154.
The first 5 multiples of 5 are: 5, 10, 15, 20, 25 The first 5 multiples of 9 are: 9, 18, 27, 36, 45 The first 5 multiples of both 5 and 9 are: 45, 90, 135, 180, 225
Since you didn't specify a single number, and all numbers are multiples of themselves, the five smallest multiples are the counting numbers 1 to 5.
The first ten positive integer multiples of 221 are: 1 x 221 = 221 2 x 221 = 442 3 x 221 = 663 4 x 221 = 884 5 x 221 = 1105 6 x 221 = 1326 7 x 221 = 1547 8 x 221 = 1768 9 x 221 = 1989 10 x 221 = 2210
221, 442, 663, 884, 1105.
The total number of multiples is infinite. Here are the first 10: 221, 442, 663, 884, 1105, 1326, 1547, 1768, 1989, 2210 . . .
1, 13, 17, 221.
221, 442, 663
33, 66, 99, 132, 155, 188, 221
Multiples of 1105
They are the first three multiples of LCM(5, 9), that is, the first three multiples of 45.
The first 5 common multiples are the first 5 multiples of their lowest common multiple (LCM) LCM(9, 10) = 90 → first 5 common multiples are 90, 180, 270, 360, 450.
The first four multiples of five: 5, 10, 15, 20
The first 6 multiples of 5 are: 5, 10, 15, 20, 25, and 30.
154, 308, 462, 616, and 770 are the first 5 multiples of 154.