Originally posted by Knight SquareI'm thinking going by the last numbers might work. Get two pairs which each add to a number with a 0 at the end then add one that has a 6 at the end. Otherwise it would be trial and error.
The only way i can think of is trial and error, but that will take forever.
Originally posted by MixoThose divisible by the sum of their digits, and a source of great joy to many.
What are Harshad numbers? I suppose I could search on Google but an answer here might interest many who are following this thread.