What is the smallest integer greater than 0 that can be written entirely with zeros and ones and is evenly divisible by 225?

(In reply to Zeros and Ones by John)

John, If you intend the binary representation of 450, it's 111000010. You show the digits in reverse order, explaining why you put a leading zero in. Convention dictates high order to low order. Why not 11100001, representing the decimal 225 itself? But see my previous comments about bases, as well as Ravi's.

Posted by Charlie on 2003-04-09 04:31:40