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International Contests
IMSC
IMSC 2023
6
6
Part of
IMSC 2023
Problems
(1)
Divisibility with iteration of a polynomial
Source: IMSC 2023 Mock IMO P6
7/13/2023
Find all polynomials
P
(
x
)
P(x)
P
(
x
)
with integer coefficients, such that for all positive integers
m
,
n
m, n
m
,
n
,
m
+
n
∣
P
(
m
)
(
n
)
−
P
(
n
)
(
m
)
.
m+n \mid P^{(m)}(n)-P^{(n)}(m).
m
+
n
∣
P
(
m
)
(
n
)
−
P
(
n
)
(
m
)
.
Proposed by Navid Safaei, Iran
algebra
polynomial