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2
xy^2 /(x+y) is a prime
xy^2 /(x+y) is a prime
Source: Indian Postal Coaching 2009 set 4 p2
May 26, 2020
prime
number theory
Fraction
Problem Statement
Find all pairs
(
x
,
y
)
(x, y)
(
x
,
y
)
of natural numbers
x
x
x
and
y
y
y
such that
x
y
2
x
+
y
\frac{xy^2}{x+y}
x
+
y
x
y
2
is a prime
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