What is least number added to 4042 to make it perfect square?

Options

A. 64
B. 41
C. 58
D. 54

Answer

To find the least number that needs to be added to 4042 to make it a perfect square, we can follow these steps:

### Step 1: Find the square root of 4042
First, we calculate the square root of 4042 to determine the nearest whole numbers around it.

\[ \sqrt{4042} \approx 63.57 \]

### Step 2: Identify the next whole number
The next whole number after 63.57 is 64.

### Step 3: Calculate the perfect square of the next whole number
Now, we calculate the square of 64:

\[ 64^2 = 4096 \]

### Step 4: Find the difference between 4042 and 4096
Next, we find the difference between 4096 and 4042 to determine how much we need to add:

\[ 4096 - 4042 = 54 \]

### Conclusion
Thus, the least number that needs to be added to 4042 to make it a perfect square is **54**.

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