Iterative sum of digits of 2^n number - MATLAB Cody - MATLAB Central

Problem 43019. Iterative sum of digits of 2^n number

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Given n, calculate the number 2^n (where n>=0) and iterate until the sum of the digits is a single-digit number.
Example:
Input n = 7
Output sum = 2
because 2^7 = 128, and 1+2+8=11 and 1+1=2.
Solve

Solution Stats

43.9% Correct | 56.1% Incorrect
Last Solution submitted on Jun 25, 2025

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digits power of two sum

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