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  1. The least six digit number which is a perfect square is
    1. 100489
    2. 100000
    3. 100256
    4. 100225
Correct Option: A

The smallest 6-digit number = 100000

Clearly,
316 < √100000 < 317
317 × 317 = 100489
∴  Required number = 100489


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