You are viewing a single comment's thread. Return to all comments →
You should multiply this string n by k. So it is gonna be "148148148" not just "148". So basically (1+4+8) * 3 = 39 => 3+9=12 => 1+2 = 3
Seems like cookies are disabled on this browser, please enable them to open this website
Recursive Digit Sum
You are viewing a single comment's thread. Return to all comments →
You should multiply this string n by k. So it is gonna be "148148148" not just "148". So basically (1+4+8) * 3 = 39 => 3+9=12 => 1+2 = 3