- #1
lugita15
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- 15
Homework Statement
For what natural numbers n is (10^n)-1 divisible by 73?
Homework Equations
N/A
The Attempt at a Solution
I have already found that it holds when n is a power of two greater than 8. (That means when n is great than 8, not the eigth power of 2)
What other natural numbers n satisfy the above condition?