Square root of 42
The square root of 42 is 6.480741 (rounded to 6 decimal places). It cannot be simplified.
Square root of 42
Pick any whole number from 1 to 10,000.
How to work it out
- 1
The square root of 42 is the number that multiplied by itself gives 42.
- 2
42 is between the perfect squares 6² = 36 and 7² = 49, so its square root is between 6 and 7.
- 3
42 has no square factor bigger than 1, so the radical stays as it is.
- 4
A calculator, or long division of digits, gives
LaTeX source of the formulas on this page
\[ \sqrt{42} = \sqrt{42} \approx 6.480741 \]
\[ \sqrt{42} \]
\[ \sqrt{42} \approx 6.480741 \]Squares around 42
| Number | Squared |
|---|---|
| 5 | 25 |
| 6 | 36 |
| 7 | 49 |
| 8 | 64 |
Questions
What is the square root of 42?
The square root of 42 is 6.480741 (rounded to 6 decimal places). It cannot be simplified.
Is 42 a perfect square?
No. It lies between 6² = 36 and 7² = 49.
What is 42 squared?
42 × 42 = 1764.
What is the square root of 42 rounded to 2 decimals?
6.48.