What is the least integer $$\(n> 0\)$$ for which $$\(2020-n\)$$ is the square of an integer?
A.
1
B.
2019
C.
2020
D.
none of above
Exam No：2020-2021 Math League First Round Grades 8-9 Year：2021 Question No：16
Answer:
D
Knowledge points:
G8-9 - Number Theory - Integer Solutions (Diophantine Equations)
Solution:
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