23, 46, 69
No. the closest multiples are 69 and 72
69, 138, 207 and so on.
The multiples of 3 up to 50 are: 3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48
69, 138, 207
All multiples of 3 have digits that add up to a multiple of 3.
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
The Least Common Multiple of 69, 96: 2,208
Multiples of 3 are easy to identify. Their digits add up to a multiple of 3.
54, 57, 60, 63, 66, 69, 72, 75, 78.
There are infinitely many of them and they are of the form 69*n where n is any counting number.
3,6,9,12