For what integer $$\(k\)$$ will $$\(2^{k}-1\)$$ be the greatest divisor of $$\(2^{22}-2\)$$ that is less than $$\(2^{22}-2\)$$ ?

A.
1
B.
20
C.
21
D.
22
Mathematics
Competition
Math League
Exam No:2020 First Round Grades 8-9 Year:2020 Question No:24

Answer:

C

Knowledge points:

G8-9 - Number Theory - Divisibility Rules (Application)

Solution:

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