SOLUTION: I need to show that 11! has a remainder of 1 when divided by 13 without the use of a calculator any ideas please.

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Question 328689: I need to show that 11! has a remainder of 1 when divided by 13 without the use of a calculator any ideas please.
Answer by galactus(183) About Me  (Show Source):
You can put this solution on YOUR website!
If there is a remainder of 1 when 13 is divided into 39916800, then 13 must divide evenly into 39916799.