Find all possible two digit positive integers N for which the sum of digits of 10^{N}  N is divisible by 170.
20, 39, 58, 77, 96
All twodigit numbers that satisfy the problem are 20 + k*19, where k is any integer between 0 and 4, inclusively.
( 19 * 9  1) = 170
It it true, Ady, I should better phrase what I mean to express. And it is true, the satisfying equation can be written, x = k*19 + 1, such that k is an integer, inclusively, between 0 and 4, and x is a number that will satisfy the given conditon.
Edited on July 15, 2006, 12:40 pm

Posted by Dej Mar
on 20060714 13:36:07 