Attic numerals 
The Attic
The Attic numerals were a decimal (base 10) system, like the older
Attic numerals were adopted possibly starting in the 7th century BCE, and were eventually replaced by the
The Attic numerals used the following main symbols, with the given values:
Value  Symbol  Talents  Staters  Notes  Etruscan  Roman 

1  Ι  Tally mark?  𐌠  I  
5  Π  𐅈  𐅏  Old Greek: ΠΕΝΤΕ [pɛntɛ] Modern: πέντε  𐌡  V 
10  Δ  𐅉  𐅐  Old Greek: ΔΕΚΑ [deka] Modern: δέκα  𐌢  X 
50  𐅄  𐅊  𐅑  "Δ" in "Π": 10 × 5 = 50  𐌣  L 
100  Η  𐅋  𐅒  Old Greek: ΗΕΚΑΤΟΝ [hɛkaton] Modern: ἑκατόν  𐌟  C 
500  𐅅  𐅌  𐅓  "Η" in "Π": 100 × 5 = 500  ?  D 
1000  Χ  𐅍  𐅔  Old Greek: ΧΙΛΙΟΙ [kʰilioi] Modern: χίλιοι  ?  M 
5000  𐅆  𐅎  "Χ" in "Π": 1000 × 5 = 5000  ?  V  
10000  Μ  𐅕  Old Greek: ΜΥΡΙΟΝ [myrion] Modern: μύριον  ?  X  
50000  𐅇  𐅖  "Μ" in "Π": 10000 × 5 = 50000  ?  X 
The symbols representing 50, 500, 5000, and 50000 were composites of an old form of the capital letter
The fractions "one half" and "one quarter" were written "𐅁" and "𐅀", respectively.
The symbols were slightly modified when used to encode amounts in
The use of "Η" (capital
Multiples 1 to 9 of each power of ten were written by combining the two corresponding "1" and "5" digits, namely:
Units  Ι  II  III  IIII  Π  ΠI  ΠII  ΠIII  ΠIIII 
1  2  3  4  5  6  7  8  9  
Tens  Δ  ΔΔ  ΔΔΔ  ΔΔΔΔ  𐅄  𐅄Δ  𐅄ΔΔ  𐅄ΔΔΔ  𐅄ΔΔΔΔ 
10  20  30  40  50  60  70  80  90  
Hundreds  Η  ΗΗ  ΗΗΗ  ΗΗΗΗ  𐅅  𐅅Η  𐅅ΗΗ  𐅅ΗΗΗ  𐅅ΗΗΗΗ 
100  200  300  400  500  600  700  800  900  
Thousands  Χ  ΧΧ  ΧΧΧ  ΧΧΧΧ  𐅆  𐅆Χ  𐅆ΧΧ  𐅆ΧΧΧ  𐅆ΧΧΧΧ 
1000  2000  3000  4000  5000  6000  7000  8000  9000  
Tens of thousands  Μ  ΜΜ  ΜΜΜ  ΜΜΜΜ  𐅇  𐅇Μ  𐅇ΜΜ  𐅇ΜΜΜ  𐅇ΜΜΜΜ 
10000  20000  30000  40000  50000  60000  70000  80000  90000 
Unlike the more familiar Roman numeral system, the Attic system used only the socalled "additive" notation. Thus, the numbers 4 and 9 were written ΙΙΙΙ and ΠΙΙΙΙ, not ΙΠ and ΙΔ.
In general, the number to be represented was broken down into simple multiples (1 to 9) of powers of ten — units, tens, hundred, thousands, etc.. Then these parts would be written down in sequence, from largest to smallest value. For example:
Attic numerals are available in


East Asian 
Alphabetic 
Former 


