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2024 JHMT HS
13
Remainders of Squares Modulo 31
Remainders of Squares Modulo 31
Source:
September 8, 2024
number theory
quadratics
2024
Problem Statement
Compute the largest nonnegative integer
T
≤
30
T \leq 30
T
≤
30
that is the remainder when
T
2
+
4
T^2 + 4
T
2
+
4
is divided by
31
31
31
.
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