Find Greatest Common Divisor of 301981 and 449573, using prime factorization.
Answer
The GCD of given numbers is 971.
Explanation
Step 1 : Find prime factorization of each number.
$$\begin{aligned}301981 =& 311\cdot971\\[8pt]449573 =& 463\cdot971\\[8pt]\end{aligned}$$(view steps on how to factor 301981 and 449573. )
Step 2 : Put a box around factors that are common for all numbers:
$$\begin{aligned}301981 =& 311\cdot\color{blue}{\boxed{971}}\\[8pt]449573 =& 463\cdot\color{blue}{\boxed{971}}\\[8pt]\end{aligned}$$Step 3 : Multiply the boxed numbers together:
$$ GCD = 971 $$This solution can be visualized using a Venn diagram.
The GCD equals the product of the numbers at the intersection.
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