>Indonesian 43.6 millionsHave you read the footnote?
https://en.wikipedia.org/wiki/List_of_languages_by_number_of_native_speakers#cite_note-Indonesian-14Copied from the footnote:
Some have argued this number should be much higher, estimating between 215 and 268 million due to relative greater competence of speakers in the Indonesian language as compared with the language Ethnologue, perhaps wrongly, defines as being their first language (e.g., Javanese, Minangkabau, Bugis, etc.)
I speak Sundanese (West Java).
People who live in Central Java or East Java mostly speak Javanese.
If I travel to Central Java, I can still communicate with them using Indonesian language.
Most national TV programs use Indonesian language too.
Most Indonesian speaks at least 2 languages: Indonesian and another ethnic language (Javanese, Sundanese, etc).