Respuesta :

Answer: (if you meant 21)

84

Step-by-step explanation:

Multiples of 12:

12, 24, 36, 48, 60, 72, 84, 96, 108

Multiples of 14:

14, 28, 42, 56, 70, 84, 98, 112

Multiples of 21:

21, 42, 63, 84, 105, 126

Q&A Education