Brocard's problem
التعريفات والمعاني
== English ==
=== Etymology ===
It was posed by Henri Brocard in a pair of articles in 1876 and 1885.
=== Proper noun ===
Brocard's problem
(mathematics) The problem of finding integer values of
n
{\displaystyle n}
and
m
{\displaystyle m}
for which
n
!
+
1
=
m
2
{\displaystyle n!+1=m^{2}}
, where
n
!
{\displaystyle n!}
is the factorial.