In base 8, the greatest four digits perfect square is:

9801

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1024

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8701

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7601

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Solution

The correct option is D 7601
In base 10, the greatest 4 digits perfect square = 9801
In base 9, the greatest 4 digits perfect square = 8701
In base 8, the greatest 4 digits perfect square = 7601
Alternately,
Multiply $(77)_{8} \times (77)_{8}$ to get 7601 as the answer.

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Similar questions

The greatest four-digit perfect square number is :

Column I	Column II
Greatest 3 digit perfect square	$1, 024$
Smallest 5 digit perfect square	$9, 801$
Smallest 3 digit perfect square	$961$
Greatest 4 digit perfect square	$10, 000$
Smallest 4 digit perfect square	$100$

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