Numerals
| Numeral systems by culture | |
|---|---|
| Hindu-Arabic numerals | |
| Western Arabic Eastern Arabic Indian family Tamil |
Burmese Khmer Lao Mongolian Thai |
| East Asian numerals | |
| Chinese Japanese Suzhou |
Korean Vietnamese Counting rods |
| Alphabetic numerals | |
| Abjad Armenian Āryabhaṭa Cyrillic |
Ge'ez Greek Georgian Hebrew |
| other historical systems | |
| Aegean Attic Babylonian Brahmi Egyptian Etruscan Inuit |
Kharosthi Mayan Quipu Roman |
| Positional systems by base | |
| Decimal (10) | |
| 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 20, 24, 26, 27, 32, 36, 60, 64, 85 | |
| Balanced ternary | |
| List of numeral systems | |
Having been derived from the Hindu numerals, modern Khmer numerals also represent a decimal positional notation system. It is the script with the first extant material evidence of zero as a numerical figure, dating its use back to the seventh century, two centuries before its certain use in India. However, Old Khmer, or Angkorian Khmer, also possessed separate symbols for the numbers 10, 20, and 100. Each multiple of 20 or 100 would require an additional stroke over the character, so the number 47 was constructed using the 20 symbol with an additional upper stroke, followed by the symbol for number 7. This inconsistency with its decimal system suggests that spoken Angkorian Khmer used a vigesimal system.
As both Thai and Lao script are derived from Old Khmer, their modern forms still bear many resemblances to the latter, demonstrated in the table below:
| Value | Khmer | Thai | Lao |
|---|---|---|---|
| 0 | ០ | ๐ | ໐ |
| 1 | ១ | ๑ | ໑ |
| 2 | ២ | ๒ | ໒ |
| 3 | ៣ | ๓ | ໓ |
| 4 | ៤ | ๔ | ໔ |
| 5 | ៥ | ๕ | ໕ |
| 6 | ៦ | ๖ | ໖ |
| 7 | ៧ | ๗ | ໗ |
| 8 | ៨ | ๘ | ໘ |
| 9 | ៩ | ๙ | ໙ |
Read more about this topic: Khmer Numbers