Difference between revisions of "2023 USAJMO Problems/Problem 1"
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Proceed as above. ~eevee9406 | Proceed as above. ~eevee9406 | ||
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+ | note: idk gang i think the first factorization is more readily apparent but the second factorization is very orz indeed | ||
+ | ~Aarush12 | ||
==See Also== | ==See Also== | ||
{{USAJMO newbox|year=2023|before=First Question|num-a=2}} | {{USAJMO newbox|year=2023|before=First Question|num-a=2}} | ||
{{MAA Notice}} | {{MAA Notice}} |
Latest revision as of 00:18, 18 March 2025
Problem
Find all triples of positive integers that satisfy the equation
Solution 1
We claim that the only solutions are and its permutations.
Factoring the above squares and canceling the terms gives you:
Jumping on the coefficients in front of the ,
,
terms, we factor into:
Realizing that the only factors of 2023 that could be expressed as are
,
, and
, we simply find that the only solutions are
by inspection.
-Max
Alternatively, a more obvious factorization is:
Proceed as above. ~eevee9406
note: idk gang i think the first factorization is more readily apparent but the second factorization is very orz indeed ~Aarush12
See Also
2023 USAJMO (Problems • Resources) | ||
Preceded by First Question |
Followed by Problem 2 | |
1 • 2 • 3 • 4 • 5 • 6 | ||
All USAJMO Problems and Solutions |
These problems are copyrighted © by the Mathematical Association of America, as part of the American Mathematics Competitions.