top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

If N! = S where S is total number of seconds in six weeks then what is the value of N?

+1 vote
236 views
If N! = S where S is total number of seconds in six weeks then what is the value of N?
posted Mar 21, 2017 by anonymous

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

+2 votes

I think it would be N=10 since:

N! = 6*7*24*60*60 = 1*2*3*7*(4*6)*(5*3*2*2)*60 = 1*2*3*4*5*6*7*(3*2*2*5*3*2*2) = 7!*(2*2*2)*(3*3)*(2*5) = 7!*8*9*10 = 10!

answer Mar 21, 2017 by Tomasz Gudwański
This is how to do it when you don't have a calculator handy ! Nice !
Thanks for your comment. Regards.
...