Back 4 (ахыԥхьаӡара) Abkhazian 4 (getal) Afrikaans አራት Amharic Fēower ANG 4 (عدد) Arabic 4 (ܡܢܝܢܐ) ARC 4 ARY ৪ Assamese Cuatro AST Ункъо AV
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is a square number, the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures.