Today we have an exercise, a solution, and a question I don’t know the answer to. The exercise is to write a program that lists the narcissistic numbers in which the sum of the nth powers of the digits of an n-digit number is equal to the number. For instance, 153 is a narcissistic number of length 3 because 1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153. The largest decimal narcissistic number is the 39-digit number that is the title of today’s exercise.

Your task is to write a program to find narcissistic numbers. When you are finished, you are welcome to read or run a suggested solution, or to post your solution or discuss the exercise in the comments below.

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