Language name and locationː Ndom, Papua, Indonesia [Refer to Ethnologue]

语言名称和分布地区: 恩敦语, 印尼巴布亚地科罗旁岛 (Kolopom island)

1. sɑs

2. thef 

3. ithin

4. thonith

5. meregh

6. mer

7. mer ɑbo sɑs (litː 6+1')

8. mer ɑbo thef  (litː 6+2')

9. mer ɑbo ithin (litː 6+3')

10. mer ɑbo thonith (litː 6+4')

11. mer ɑbo meregh (litː 6+5')

12. mer ɑbo thef (litː 6 x 2')

13. mer ɑbo thef ɑbo sɑs  (litː 6 x 2+1')

18. tondor 

20. tondor ɑbo sɑs (litː 18+2')

24. tondor ɑbo mer (litː 18+6')

36. nif

40. nif-ɑbo-thinith (litː 36+2')

72. nif-thef (litː 36 x 2')

108. nif ithin (litː 36 x 3')

Linguist providing data and dateː  

Owens, Kay. Mathematics Education Research Journal, 2001, Vol. 13, No.1, 47-71
The Work of Glendon Lean on the Counting Systems of Papua New Guinea and Oceania, University of Western Sydney, Australia.

Sources: Calis (1960, p. 148), Drabbe (1949, pp. 6-7), Lean (1992, Vol. 5, p. 122; 1992, pp. 113-114

提供资料的语言学家: 

Other comments: Ndom has a senary numeral system or 6-cycle counting system spoken on the Kolopom Island (Yos Sudarso Island) adjacent to the south coast of Papua province, Indonesia by approximately 1,200 speakers.