5 →
4
Multiples: ¦¦
8
¦¦¦
12
¦¦¦¦¦
20
¦¦¦¦¦¦¦     
28     
Fractions: 2      
−1 0 1 2 3 4 5 6 7 8 9
Cardinal 4
four
Ordinal 4th
(4th
fourth)
Numeral system quaternary
Factorization
Divisors 1, 2, 4
Roman numeral IV
Unicode symbol(s) Ⅳ, ⅳ
Greek Prefix tetra-
Latin Prefix quadri-/quadr-
Binary 1002
Octal 48
Duodecimal 412
Hexadecimal 416
Arabic ٤,4
Arabic (Urdu) ۴
Ge'ez
Bengali
Chinese numeral 四,亖,肆
Devanagari
Tamil
Hebrew ארבע (Arba, pronounced are-buh) or ד (Dalet, 4th letter of the Hebrew alphabet)
Khmer
Thai
Multiples × 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 specific
… of 1:                                
… of 2:                                        
… of 4: