Divisible without remainder

Determine the number by which all these numbers, 22, 18, 25, 15, 35, and 10, are divisible without remainder. The number is greater than 1.

Correct answer:

x =  1

Step-by-step explanation:

$$\begin{gathered} 22=2\cdot 11 \\ 18=2\cdot 3^2 \\ 25=5^2 \\ 15=3\cdot 5 \\ 35=5\cdot 7 \\ 10=2\cdot 5 \\ \text{GCD}(22,18,25,15,35,10)=1 \\ x=GCD(22,18,25,15,35,10)=1 \end{gathered}$$

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