Well, isn't that a happy little puzzle! To make 10.5 with three of the same numbers, we can simply divide 10.5 by 3. So, the three same numbers that make 10.5 are 3.5. Just like painting, sometimes all we need is a little division to bring harmony and balance to the canvas of numbers.
these 3 no. are 35+35+35=105 make 105
They are: 3*5*7 = 105
105 = 3 x 5 x 7
210
3 x 5 x 7 = 105
315
3*5*7 = 105
315
1 x 105, 3 x 35, 5 x 21, 7 x 15.
They are: 3*5*7 = 105
315
They are: 3*5*7 = 105