C Program to Check Armstrong Number

http://technotip.com/6580/c-program-to-check-armstrong-number/

Lets write a C program to check whether user entered number is Armstrong or not.

Armstrong number: is a number that is equal to the sum of cubes of its individual digits.

Example: If user input the number 371. It’s individual digits are 3, 7 and 1. Lets cube each digit: 3 x 3 x 3 + 7 x 7 x 7 + 1 x 1 x 1 = 27 + 343 + 1 = 371.

The user entered number 371 is equal to the sum of cube of its individual digits. So 371 is a Armstrong number.

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