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Find the GREATEST number of 5 digits which is a perfect square. (Use long division on 99999.)

Class 8Square Root by Long DivisionSquares and Roots

A199712
B109841
C99856
D89871

Step-by-Step Solution

99999

lies between 316 and

317 (31 6^{2} = 99856, 31 7^{2} = 100489

has 6 digits). So the greatest 5-digit perfect square is

31 6^{2} = 99856

.

Answer: C) 99856

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