Square root of 155
The square root of 155 is 12.4499 (rounded to 6 decimal places). It cannot be simplified.
Square root of 155
Pick any whole number from 1 to 10,000.
How to work it out
- 1
The square root of 155 is the number that multiplied by itself gives 155.
- 2
155 is between the perfect squares 12² = 144 and 13² = 169, so its square root is between 12 and 13.
- 3
155 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
\[ \sqrt{155} = \sqrt{155} \approx 12.4499 \]
\[ \sqrt{155} \]
\[ \sqrt{155} \approx 12.4499 \]Squares around 155
| Number | Squared |
|---|---|
| 11 | 121 |
| 12 | 144 |
| 13 | 169 |
| 14 | 196 |
Questions
What is the square root of 155?
The square root of 155 is 12.4499 (rounded to 6 decimal places). It cannot be simplified.
Is 155 a perfect square?
No. It lies between 12² = 144 and 13² = 169.
What is 155 squared?
155 × 155 = 24025.
What is the square root of 155 rounded to 2 decimals?
12.45.