Anyway, here are my estimates: 1) Russia: 6200km ; 2) China and Canada: both very close to 5000km ; 4) USA: between 4400km and 4700km ; 5) Brazil: 4250km
On the plus side, I typing in the least gotten country-Morocco. :D
How is Indonesia not here though
The only way they wouldn't would be if you are measuring a single, longest UNBROKEN span of the country, which you don't define in the question. Update your question if you must, because otherwise I see an error in this quiz.
CONTINUAL LANDMASSES Indonesia is made up of islands