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1972 Polish MO Finals
6
sum of digits of number 1972^n
sum of digits of number 1972^n
Source: Polish MO Finals 1972 p6
August 22, 2024
number theory
Problem Statement
Prove that the sum of digits of the number
197
2
n
1972^n
197
2
n
is not bounded from above when
n
n
n
tends to infinity.
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