Language name and locationː Irahutu, West Papua, Indonesia [Refer to Ethnologue]
语言名称和分布地区: 伊拉胡图语, 印尼巴西布亚省本贝赖半岛中部

1. ɛsuɛm, ɛso

21.  matu-tni-risi-ɛsuɛm

2. ru

22.  matu-tni-risi-ru

3. tur

23.  matu-tni-risi-tur

4. ɡiɡiti

24.  matu-tni-risi-ɡiɡiti

5. fradfid

25.  matu-tni-risi-fradfid

6. fradfid-ɛ-trɛ-(ɛ)su (5 + 1)

26.  matu-tni-risi-fradfid-ɛ-trɛ-(ɛ)su

7. fradfid-ɛ-trɛ-ru     (5 + 2)

27.  matu-tni-risi-fradfid-ɛ-trɛ-ru

8. fradfid-ɛ-trɛ-tur    (5 + 3)

28.  matu-tni-risi-fradfid-ɛ-trɛ-tur

9. fradfid-ɛ-trɛ-ɡiɡiti (5 + 4)

29.  matu-tni-risi-fradfid-ɛ-trɛ-ɡiɡiti

10. fradru

30.  matu-tni-risi-fradru

11. fradru-risi-ɛsuɛm

40.  matu-tni-ru

12. fradru-risi-ru

50.  matu-tni-ru-fradru

13. fradru-risi-tur

60.  matu-tni-tur

14. fradru-risi-ɡiɡiti

70.  matu-tni-tur-fradru

15. fradru-risi-fradfid

80.  matu-tni-ɡiɡiti

16. fradru-risi-fradfid-ɛ-trɛ-(ɛ)su

90.  matu-tni-ɡiɡiti-fradru

17. fradru-risi-fradfid-ɛ-trɛ-ru

100. ratu ɛsuɛm / ratu ɛso

18. fradru-risi-fradfid-ɛ-trɛ-tur

200. ratu ru

19. fradru-risi-fradfid-ɛ-trɛ-ɡiɡiti

1000. rifunu ɛsuɛm / ribu (<Malay )

20. matu-tni / matu-tɛni ('one person')

2000. rifunu ru

Linguist providing data and dateː Mr. Takashi Matsumura. SIL International, April 30, 1993. January 27, 2009.
提供资料的语言学家: Mr. Takashi Matsumura. 1993 年 4 月 30 日. 2009 年 1 月 27 日.

Other comments: Irahuru has a quinary system. Twenty is expressed by 'one person'. However, the Irarutu people can count until ten maybe as of now, maybe the only one or older folks who can count until 100. Malay/Indonesian numbers have been used more often now. Irahuru is spoken by about 4,000 speakers in over 40 villages in

Fakfak, north Kaimana, and Teluk Bintani regencies on east Bomberai peninsula, Arguni bay north to Bintuni bay southwest, West Papua province, Indonesia.