Daily "Find the Missing Number" Contest - 19 July 2018

This is a puzzle you might have played in your childhood, but don't ask your kids to help you !

Look at the following series of numbers and find the one that is missing.

120, 720, 5040, 40320, ?

_{source: self}

Rules of the contest:

1. Upvote this post!

2. Follow my account!
3. Upvote the comment below which contains the correct answer!
4. You may only upvote 1 of the answers!

Please resteem if you want to!


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50% of SBD from this post will be distributed equally to the winners.
Special thanks to @builderofcastles for making sure we have enough SBD for the winners!
Please follow his account and Comment/Resteem/Upvote his posts to show gratitude.
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See you tomorrow!