MathDB
Problems
Contests
National and Regional Contests
Moldova Contests
Moldova National Olympiad
2003 Moldova National Olympiad
10.1
Find prime numbers
Find prime numbers
Source:
January 3, 2010
number theory proposed
number theory
Problem Statement
Find all prime numbers
a
,
b
,
c
a,b,c
a
,
b
,
c
that fulfill the equality: (a\minus{}2)!\plus{}2b!\equal{}22c\minus{}1
Back to Problems
View on AoPS