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2023 ITAMO
1
Easy equation with powers
Easy equation with powers
Source: Italy MO 2023 P1
May 7, 2023
number theory
Problem Statement
Let
a
,
b
a, b
a
,
b
be positive integers such that
5
4
a
=
a
b
54^a=a^b
5
4
a
=
a
b
. Prove that
a
a
a
is a power of
54
54
54
.
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