"There are two early "Holocaust" tales from the Talmud. Gittin 57b claims that four BILLION Jews were killed by the Romans in the city of Bethar. Gitting 58a claims that 16 million Jewish children were wrapped in scrolls and burned alive by the Romans." - Judaism's Strange Gods (Michael A. Hoffman II) page 51
https://www.veteranstoday.com/2016/08/10/the-six-million-figure-another-holocaust-lie-and-the-lying-liars-who-enable-it/ using 6 million in the 1800s and early 1900s
The Jewish Talmud contains some more examples: