Any multiple of 405.
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They are all multiples of 9. Their common multiples are 405, 810, 1215 and so on.
Oh, what a happy little question! Multiples of 27 include 27, 54, 81, and so on. Multiples of 9 include 9, 18, 27, and more. Multiples of 15 are 15, 30, 45, and beyond. And multiples of 81 include 81, 162, 243, and many more. Just remember, each number has its own special multiples waiting to be discovered!
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99.
as in the multiples? 9 18 27 36 45 54 63 72 81 90 99 ...
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99