אא אא Numbers [Natural Numbers] (.) (Natural numbers) : 1, 2, 3, 4, 5, 6, 7,… . . 12 . : 12 1 , 2 , 3 , 4 , 6 , 12 . . .12 = 1×12 = 2 × 6 = 3 × 4 = 2 ×2 × 3 2×2 22 ١