Respuesta :

Answer:

42² = 1764

Step-by-step explanation:

7 = 7¹

14 = 2ₓ7

18 = 2ₓ3²

lcm = 7ₓ2ₓ3²

to find the smallest square number

(7ₓ2ₓ3²)ₓ7ₓ2 =

= (7ₓ2ₓ3)²

= 42²

= 1764