MathDB
Problems
Contests
National and Regional Contests
PEN Problems
PEN A Problems
106
106
Part of
PEN A Problems
Problems
(1)
A 106
Source:
5/25/2007
Determine the least possible value of the natural number
n
n
n
such that
n
!
n!
n
!
ends in exactly
1987
1987
1987
zeros.
floor function
Divisibility Theory