5 Interesting facts about Digital sum and Digital roots
Have you ever gone through the topic called digital sum and surprised? Don't worry if you have not yet gone through because this post is exclusively for people like you. Solutions for these questions gets cleared after reading this post. What is Digital sum? How does digital sum help to save time? What is a Digital root? Digital sum: Digital sum can be defined as the sum of all the digits of a number. Digital root: The Digital root of a number can be obtained by finding digital sum repeatedly until you get a single digit. Let A, B be two numbers. Digital root properties: Digital root(A*B) = Digital root( Digital root(A)*Digital root(B) ) Digital root(A^2) = Digital root(Digital root(A)*Digita root(B)) Digital root(A+B) = Digital root( Digital root(A)+Digital root(B) ) Digital root(A-B) = Digital root( Digital root(A)-Digital root(B) ) Digital root(10^x + A) = Digital root(A) How are these properties going to help you in saving your time? If yo