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Find all primes p, q, r [Slovenia 2010]
Find all primes p, q, r [Slovenia 2010]
Source:
November 14, 2010
number theory proposed
number theory
Problem Statement
Find all prime numbers
p
,
q
,
r
p, q, r
p
,
q
,
r
such that
15
p
+
7
p
q
+
q
r
=
p
q
r
.
15p+7pq+qr=pqr.
15
p
+
7
pq
+
q
r
=
pq
r
.
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