Barcallica

Now to prove your answer is the smallest. Last digit of result always is 1. We should prove it cannot be 1. 36k = 5m +1, left side is dividable by 4. Right side is not.

k=1 m=-infinite (though -infinite is not real number)

k=1 m=2 smallest 11.

You mean smallest natural?

I was following the topic to see the solution to this seemingly simple but very interesting problem. And very nice solution by plasmid. Even school kids could understand without any trouble.

I never try these riddles due to the language /and culture/ incompetency. Could it be drug tablet. I am not sure if I understand the sentences accurately.

This is incorrect. This is correct.