What is the greatest common factor of $20 !$ and $200,\!000$?  (Reminder: If $n$ is a positive integer, then $n!$ stands for the product $1\cdot 2\cdot 3\cdot \cdots \cdot (n-1)\cdot n$.)
Question:
What is the greatest common factor of $20 !$ and $200,\!000$?  (Reminder: If $n$ is a positive integer, then $n!$ stands for the product $1\cdot 2\cdot 3\cdot \cdots \cdot (n-1)\cdot n$.)
Answer:
Let's think step by step.

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40,\!000
What is the greatest common factor of $20 !$ and $200,\!000$?  (Reminder: If $n$ is a positive integer, then $n!$ stands for the product $1\cdot 2\cdot 3\cdot \cdots \cdot (n-1)\cdot n$.)
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