MathDB
Problems
Contests
National and Regional Contests
Finland Contests
Finnish National High School Mathematics Competition
2013 Finnish National High School Mathematics Competition
5
5
Part of
2013 Finnish National High School Mathematics Competition
Problems
(1)
Solve $2^m p^2 + 1 = q^5$
Source: Finland 2013, Problem 5
5/2/2013
Find all integer triples
(
m
,
p
,
q
)
(m,p,q)
(
m
,
p
,
q
)
satisfying
2
m
p
2
+
1
=
q
5
2^mp^2+1=q^5
2
m
p
2
+
1
=
q
5
where
m
>
0
m>0
m
>
0
and both
p
p
p
and
q
q
q
are prime numbers.
modular arithmetic
quadratics
search
number theory
Finland