# Numbers from one to twenty have specific Latin names. The Romans had
# no name for  zero, and indeed they had no concept of zero. 

1. unus
2. duo
3. tres
4. quattuor
5. quinque
6. sex
7. septem
8. octo
9. novem
10. decem
11. undecim
12. duodecim
13. tredecim
14. quattuordecim
15. quindecim
16. sedecim
17. septendecim
18. duodeviginti
19. undeviginti
20. viginti

# We append digit names after tens names as in English. The only important
# difference is that numbers one or two less than a multiple of ten are
# formed subtractively.

21. viginti unus
22. viginti duo
28. duodetriginta
29. undetriginta
30. triginta
39. undequadraginta
40. quadraginta
48. duodequinquaginta
50. quinquaginta
60. sexaginta
70. septuaginta
80. octoginta
90. nonaginta 

# The multiples of one hundred up to one thousand had given names. Tens and
# ones continue to be added after the hundreds names as in English

100. centum
101. centum unus
102. centum duo
110. centum decem
115. centum quindecim
119. centum undeviginti
120. centum viginti
128. centum duodetriginta
189. centum undenonaginta
200. ducenti
201. ducenti unus
300. trecenti
319. trecenti undeviginti
400. quadringenti
500. quingenti
600. sescenti
700. septingenti
800. octingenti
900. nongenti

# One thousand had its own name, mille. When there is more than one thousand 
# the plural form milia was used

1000. mille
1002. mille duo
1057. mille quinquaginta septem
1234. mille ducenti triginta quattuor
2000. duo milia
2001. duo milia unus
2010. duo milia decem
2100. duo milia centum
3000. tres milia
4321. quattuor milia trecenti viginti unus
18000. duodeviginti milia
54987. quinquaginta quattuor milia nongenti octoginta septem

# When we get to one hundred thousand the adjective form of centum (centum is
# a noun) must be used since it modifies the number names that follow.
# Note how addition using ac, atque, or et is used to form numbers of
# thousands between one hundred and two hundred of them

100000. centena milia
100001. centena milia unus
100020. centena milia viginti
112345. centena ac duodecim milia trecenti quadraginta quinque
199999. centena ac undecentum milia nongenti undecentum

# This paradigm continues up to one million

200000. ducenti milia
200001. ducenti milia unus
200010. ducenti milia decem
234567. ducenti triginta quattuor milia quingenti sexaginta septem
987654. nongenti octoginta septem milia sescenti quinquaginta quattuor

# Numbers greater than or equal to a million appear only rarely in classical
# Latin. To describe them, the Romans included a multiplicative prefix that
# told how many times one hundred thousand (centena milia) should occur.
# They used the adverbial forms of digit, teens, and hundreds for these
# multipliers since they stand for "that many times ..." They are themselves
# formed additively using et or ac.

1000000. decies centena milia
1000001. decies centena milia unus
1000100. decies centena milia centum
1234567. duodecies centena milia triginta quattuor milia quingenti sexaginta septem
10000000. centies centena milia
20000000. ducenties centena milia
30000000. trecenties centena milia
40000000. quadringenties centena milia
50000000. quingenties centena milia
60000000. sescenties centena milia
70000000. septingenties centena milia
80000000. octingenties centena milia
90000000. nongenties centena milia
91000000. nongenties et decies centena milia
92000000. nongenties et vicies centena milia
93000000. nongenties et tricies centena milia
94000000. nongenties et quadragies centena milia
95000000. nongenties et guinquagies centena milia
96000000. nongenties et sexagies centena milia
97000000. nongenties et septuagies centena milia
98000000. nongenties et octogies centena milia
99000000. nongenties et nonagies centena milia
45100000. quadringenties et guinquagies et semel centena milia
45200000. quadringenties et guinquagies et bis centena milia
45200000. quadringenties et guinquagies et bis centena milia
45300000. quadringenties et guinquagies et ter centena milia
45400000. quadringenties et guinquagies et quater centena milia
45500000. quadringenties et guinquagies et quinquies centena milia
45600000. quadringenties et guinquagies et sexies centena milia
45700000. quadringenties et guinquagies et septies centena milia
45800000. quadringenties et guinquagies et octies centena milia
45900000. quadringenties et guinquagies et novies centena milia
12345678. centies et vicies et ter centena milia quadraginta quinque milia sescenti duodeoctoginta
25672034. ducenties et guinquagies et sexies centena milia septuaginta duo milia triginta quattuor

# These examples come from Allen and Greenough:

3300000. tricies et ter centena milia
2700000000. vicies et septies milies centena milia

# Note that in the second of them a second multiplication is indicated
# by juxtaposition without the et. 

# These examples are, perhaps, a bit "over the top:"

987654321. novies milies octingenties et septuagies et sexies centena milia quinquaginta quattuor milia trecenti viginti unus
5940000000. guinquagies et novies milies quadringenties centena milia

# I learned from a member of Reddit r/latin that the following number is
# perhaps the largest ever to have appeared in classical Latin. It appeared
# in the works of Suetonius. If true, this is where our table can (and should)
# end!

40000000000. quadringenties milies centena milia

# Vale!