This depends a lot. For English-speaking countries, 1B = 1M * 1k For Spanish-speaking countries, 1B = 1M * 1M For other languages it's a big "it varies", tho

This depends a lot. For English-speaking countries, 1B = 1M * 1k For Spanish-speaking countries, 1B = 1M * 1M For other languages it's a big "it varies", though the second definition seems to be the most common. The term "billion" is honestly, as ambiguous as using "06-03" for a date. Also note that, historically, English also followed the second definition, so for old literature it's also confusing.