Question 323544
Simply use the definition of factorial: *[Tex \LARGE n! = n(n-1)(n-2)\ldots3\times2\times1] to compute the following



1. {{{6!=6*5*4*3*2*1=720}}}



2. {{{15!=15*14*13*12*11*10*9*8*7*6*5*4*3*2*1=1307674368000}}}



3. {{{2!=2*1=2}}}



4. *[Tex \LARGE 140! = 140\times139\times138\times\ldots3\times2\times1 = 1.34620125\times10^{241}] (I'd use a calculator here)