Tissues

The store got three kinds of tissues - 132 children, 156 women, and 204 men. Tissues for each species were packed into boxes after the number of pieces was the same for all three types (and greatest). Determine the number if you know that every box has more than six tissues.

Correct answer:

x =  12

Step-by-step explanation:

$$\begin{gathered} 132=2^2\cdot 3\cdot 11 \\ 156=2^2\cdot 3\cdot 13 \\ 204=2^2\cdot 3\cdot 17 \\ \text{GCD}(132,156,204)=2^2\cdot 3=12 \\ x=12 \end{gathered}$$

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