The GCD of given numbers is 29.
Step 1 : Find prime factorization of each number.
$$\begin{aligned}29 =& 29\\[8pt]29 =& 29\\[8pt]\end{aligned}$$(view steps on how to factor 29 and 29. )
Step 2 : Put a box around factors that are common for all numbers:
$$\begin{aligned}29 =& \color{blue}{\boxed{29}}\\[8pt]29 =& \color{blue}{\boxed{29}}\\[8pt]\end{aligned}$$Step 3 : Multiply the boxed numbers together:
$$ GCD = 29 $$This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.