Find the smallest number comprised of only 3’s and 7’s which fits the following conditions:
1) It has at least one 3;
2) It has at least one 7;
3) It is divisible by 3;
4) It is divisible by 7;
5) The sum of its digits is divisible by 3;
6) The sum of its digits is divisible by 7.
(In reply to
re: the computer doing the trial and error by stewart)
Have your Cigar back and I hand you a light..... Just added the decimal places back to me calc. and got a .43...
so redone  3333377733
This agrees with other solutions I have seen.

Posted by stewart
on 20060410 07:43:56 