The number of possible bases for which is a perfect square is:
a] 1
b] 2
c] 3
d] 4
e] more than 4
Hello, foreverbrokenpromises!
I found the answer by experimenting . . .
The number of possible bases for which is a perfect square is:
. .
The number is equal to: .
. . which is already a perfect square! .
Since the number uses {1, 2, 3}, the base must be at least 4.
Therefore, is a perfect square for any base . . . answer (e)
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Examples:
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