In this video we have discuss about whether a given number is Armstrong number or not in tamil with clear explation using whileloop. To check given number is Armstrong or not we have enter a interger number split the interger to ones form, cube it every single digit from integer, sum of the cube value is to be same with original entered value, which is same then can conclude it's an Armstrong number. This code as been explained clearly in this video in tamil for better understanding.