How do you arrange letters?

To find out the number of ways you can arrange the letters (also called permutations), we need to use the factorial formula (!). The exclamation mark means multiply the number before the exclamation mark by every number before it, so for 4 letters, the formula is: Hope this helps! Free English writing tool.
For More Information Please Refer:
https://www.quora.com/How-many-ways-can-you-arrange-the-letters-in-the-word-Math
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