In [9]:
def sum_digit(number)
number.to_s.split("").map{|n|n.to_i}.inject(:+)
end
In [10]:
max = 0
(1..99).each do |x|
(1..99).each do |y|
temp = sum_digit(x**y)
max = temp if temp > max
end
end
max
Out[10]:
In [ ]: