19, 38, 57, 76, 95
Infinite. The first ten are: 57, 114, 171, 228, 285, 342, 399, 456, 513, 570.
The first 5 multiples of seventeen are 17,34,51,68, and 85.
The first 5 multiples of 1 are: 1, 2, 3, 4, and 5.
First 5 multiples of 43: 43, 86, 129, 172, 215
19, 38, 57, 76, 95
The six multiples are: 57 x 1 = 57 57 x 2 = 114 57 x 3 = 171 57 x 4 = 228 57 x 5 = 285 57 x 6 = 342
57, 114, 171, 228, 285.
-14
57, 114, 171, 228, 285, 342.
The multiples of 57 are 57*2, 57*3, 57*4, 57*5 and so on. The first ten are 114, 171, 228, 285, 342, 399, 456, 513, 570, and 627. The multiples of 123 are 123*2, 123*3, 123*4, 123*5, and so on. The first ten are 246, 369, 492, 615, 738, 861, 984, 1107, 1230, and 1353. Numbers that are multiples of both appear in both lists, for example 7011 and 14022. (The lists above are not long enough to show the numbers that appear in both lists; they would have to be extended).
57..........
1x57=57 19x3=57
They are the first three multiples of LCM(5, 9), that is, the first three multiples of 45.
57, 114, 171, 228, 285, 342, 399, 456, 513, 570.
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.
Infinite. The first ten are: 57, 114, 171, 228, 285, 342, 399, 456, 513, 570.