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Mathematics 21 Online
OpenStudy (anonymous):

what is n if n! = 120 ?

OpenStudy (mathstudent55):

Start backwards: 1 = 1 1 * 2 = 2 1 * 2 * 3 = 6 etc. until you get 120

OpenStudy (anonymous):

Thanks:) The answer would be 5 I think:)

OpenStudy (mathstudent55):

that's it you're welcome

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