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$\mathrm{GCF}(a,b)=4$ and $\mathrm{LCM}(a,b)=96$. Find all pairs of whole numbers $a$ and $b$ for which both statements are true.

I have no clue where to even start with this problem. Thank you for any help!

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    No, I don't take orders from you. But I do suggest you (1) rephrase your command into a question, and (2) tell us what progress you have made on it, what you have tried, what you don't understand, where you get stuck, etc.2012-02-27
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    I am not sure I get what I did wrong...I was asking for help. I have no clue where to start on this question.2012-02-27
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    @SNS: Rephrase your question and ask for help. No one would help you here asking a question like that. For more information, have a look at this meta post: [How to ask a homework question](http://meta.math.stackexchange.com/questions/1803/how-to-ask-a-homework-question).2012-02-27
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    Ok, I did. Sorry I did not know I offended anyone. Sorry again.2012-02-27
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    @SNS There are some readers (not I) who take offense when questions are posed imperatively. To remedy that you can instead write "how can I find...". More importantly, the more context that you supply, the more likely that you'll receive helpful answers.2012-02-27
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    Do you know how to find $\text{GCF}(a,b)$ and $\text{LCM}(a,b)$ by looking at the prime factorizations of $a$ and $b$?2012-02-27
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    @DavidMitra I have no clue how to even start this problem.2012-02-27
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    Are you aware of the relation between the greatest common factor, the lowest common multiple, and the product, of two integers?2012-02-28
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    I know how to find the gcf and the lcm and that is about it.2012-02-28

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