
Math General Math Forum  For general math related discussion and news 
 LinkBack  Thread Tools  Display Modes 
October 26th, 2017, 05:11 AM  #1 
Newbie Joined: Oct 2017 From: Philippines Posts: 2 Thanks: 0  Help with this competition math problem.
For every positive integer n, let s(n) denote the number of terminal zeros in the decimal representation of n!. For example, 10! = 3,628,800 ends in two zeros, so s(10) = 2. How many positive integers less than or equal to 2016 cannot be expressed in the form n + s(n) for some positive integer n?
Last edited by skipjack; October 26th, 2017 at 05:48 AM. 

Tags 
competition, math, problem 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Log Problem (Math Competition)  Orlando895  Algebra  2  April 8th, 2015 04:15 PM 
Math Competition Problem  Orlando895  Real Analysis  3  July 7th, 2014 02:17 PM 
Math Competition Problem  Orlando895  Algebra  7  July 7th, 2014 02:28 AM 
Math Competition Problem  Orlando895  Math Events  7  May 27th, 2014 09:51 PM 
Math Competition Problem  Orlando895  Math Events  3  May 24th, 2014 08:56 AM 