Posted by
**frm** on
.

How many ordered pairs of positive integers (a,b) are there such that (4a-1)/b and (4b-1)/a are both integers?

Thursday

March 30, 2017
Posted by
**frm** on
.

How many ordered pairs of positive integers (a,b) are there such that (4a-1)/b and (4b-1)/a are both integers?

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