This Ruby example will check given number is Armstrong or not puts "Enter the number" temp=num while num!=0 #implementation of while loop if(temp==sum) Output Enter the number
num=gets.chomp.to_i
sum = 0
rem=num%10
num=num/10
sum=sum+rem*rem*rem
end
puts "The #{temp} is Armstrong"
else
puts "The #{temp} is not Armstrong"
end
153
The 153 is Armstrong
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