What is the first six multiples of 123?

Answer 1

To get multiples of 123, just calculate:

123 x 0

123 x 1

123 x 2

etc.

Also:

123 x (-1)

123 x (-2)

etc.

Answer 2

They are members of an infinite set of numbers of the form 129*k where k is an integer.

Answer 3

1323, 2646, 3969, 5292, 6615 . . .

Answer 4

123, 246, 369, 492, 615, 738, 861 . .

Answer 5

123, 246, 369, 492, 615, 738.