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Serbia JBMO TST
2014 Serbia JBMO TST
2
Number theory ()
Number theory ()
Source: JTST-2014
October 8, 2016
algebra
number theory
Problem Statement
Let
a
,
b
,
c
,
d
a,b,c,d
a
,
b
,
c
,
d
be the natural numbers such that
2
a
+
4
b
+
5
c
=
201
4
d
.
2^a+4^b+5^c=2014^d.
2
a
+
4
b
+
5
c
=
201
4
d
.
Find all
(
a
,
b
,
c
,
d
)
.
(a,b,c,d).
(
a
,
b
,
c
,
d
)
.
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