BDB3869 [H9004]

כ

כ, כּ eleventh letter; used as numeral 20 in post Biblical Hebrew; כא = 21, כב = 22, etc.

The Brown-Driver-Briggs Hebrew and English Lexicon
License: Public domain document; formatting developed for use in https://marvel.bible by Eliran Wong.
Source: provided by Tim Morton, the developer of Bible Analyzer