Find the smallest value of hexadecimal positive integer N which becomes 4*N when the last digit of N is moved to be the first. For example, turning (2345)_{16} into (5234)_{16}. How about 2*N? 7*N? 8*N?
(In reply to
computer solutions by Charlie)
Seeing you already posted, I thought you may have the answers to 7*N and 8*N. I do not know what the solution for 7*N is, but I see why you did not find the solution for 8*N, as your upper limit for V is 1000000, when the solution is higher.
2*10842_{16} = 24801_{16} = 49505
4*104_{16} = 401_{16} = 260
7* ???
8*1020408_{16} = 8102040_{16} = 135274560
Edited on December 23, 2014, 4:36 pm

Posted by Dej Mar
on 20141223 16:30:39 