but since y has to be an integer, then and where .
I'm not sure how this helps =S
Hello, maria18!
I found something, but I too haven't solved it yet.
Find all positive integers satisfying simultaneously two conditions:
is a rational number.
is a prime.
Rationalize: . .
. . . . . . . . .
Since is an integer: .
Can we exploit that fact? . . . I don't know.