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  1. The number of digits in the square root of 625686734489 is
    1. 4
    2. 5
    3. 6
    4. 7
Correct Option: C

The number of digits in 625686734489 is 12.
∴  Number of digits in its square root = 6
i.e., √625686734489 = 791003.625


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