U+17F8 "៸" Khmer Symbol Lek Attak Pram-Bei Unicode Character

U+17F8 "៸" Khmer Symbol Lek Attak Pram-Bei is a special diacritic mark used in the Khmer script to indicate that a numerical digit should be read with an altered value, specifically representing the number three in a particular numeric context. This symbol is part of the Khmer lunar calendar and traditional mathematical systems, where it modifies a base digit to denote a higher or shifted numerical unit. Its use is primarily historical and liturgical, appearing in manuscripts and inscriptions to denote calculated dates or counts.