-- 2^15 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26. -- -- What is the sum of the digits of the number 2^1000? import ProjectEuler (digitSum) main = do let result = digitSum $ 2 ^ 1000 putStrLn $ "Project Euler, Problem 10\n" ++ "Answer: " ++ (show result)