√184 at a glance
- Exact value
- 2√46
- Decimal (10 places)
- 13.5646599663
- Rounded
- 13.6 · 13.56 · 13.565
- Perfect square?
- No — between 13² and 14²
- Rational?
- Irrational
- Both square roots
- ±13.564660
- Prime factorization
- 2³ × 23
- Cube root
- 5.687734
How to simplify √184
Look for the largest perfect square that divides 184. Here it is 4 (2²), because 184 = 4 × 46 and 46 has no square factor left:
The prime factorization tells the same story: 184 = 2³ × 23. Each pair of equal primes leaves the radical as one factor, so 2 comes out and 2 × 23 stays inside.
Check: (2√46)² = 2² × 46 = 4 × 46 = 184. As a decimal, 2√46 = 2 × 6.7823299831 ≈ 13.5646599663.
Where √184 sits between perfect squares
169 = 13² and 196 = 14² are the nearest perfect squares, so √184 lies between 13 and 14. 184 is 15 above 169 and 12 below 196, so the root is closer to 14.
- Straight line between 169 and 196: 13.5556 (0.07% low)
- Tangent from 13, i.e. 13 + 15 ÷ 26: 13.5769 (0.09% high)
- Tangent from 14, i.e. 14 − 12 ÷ 28: 13.5714 (0.05% high)
For √184 the tangent at 14 wins, missing by only 0.0068. Tangent estimates shine when the number sits close to a perfect square — here 184 is just 12 below 196.
Finding √184 with the Babylonian method
Picture a rectangle with an area of 184 and one side x; the other side must be 184 ÷ x. Averaging the two sides gives a rectangle that is closer to a square, and the side of that square is exactly √184.
Start from the nearest whole number, 14 (14² = 196):
| Step | Guess x | 184 ÷ x | Average | Correct decimals |
|---|---|---|---|---|
| 1 | 14.0000000000 | 13.1428571429 | 13.5714285714 | 2 |
| 2 | 13.5714285714 | 13.5578947368 | 13.5646616541 | 5 |
| 3 | 13.5646616541 | 13.5646582784 | 13.5646599663 | all 10 shown |
The count of correct decimals went 2, 5 and all 10 over 3 steps — roughly doubling each time — until the guess matched √184 = 13.5646599663 to every decimal shown.
√184 as a continued fraction
Every irrational square root has a continued fraction that repeats. For √184 the pattern is [13; 1, 1, 3, 2, 1, 2, 1, 2, 3, 1, 1, 26] with the block of 12 terms after the semicolon repeating forever. A pattern that never ends is one more proof that √184 is irrational.
Cutting the continued fraction off early gives the best fractions for approximating the root — no fraction with a smaller denominator comes closer:
| Fraction | Decimal | Error |
|---|---|---|
| 13/1 | 13.0000000000 | 5.6 × 10⁻¹ |
| 14/1 | 14.0000000000 | 4.4 × 10⁻¹ |
| 27/2 | 13.5000000000 | 6.5 × 10⁻² |
| 95/7 | 13.5714285714 | 6.8 × 10⁻³ |
| 217/16 | 13.5625000000 | 2.2 × 10⁻³ |
| 312/23 | 13.5652173913 | 5.6 × 10⁻⁴ |
The same fractions solve Pell’s equation, x² − 184y² = 1. Its smallest solution in positive whole numbers is x = 24,335, y = 1,794.
√184 in geometry and everyday measurements
- A square room or garden bed covering 184 square feet measures about 13.56 ft (13 ft 7 in) along each wall.
- 184 is not a sum of two whole-number squares — the prime factor 23 (one less than a multiple of 4) appears an odd number of times, which rules that out — so √184 is never the diagonal of a rectangle with whole-number sides. It is, however, the space diagonal of a 2 × 6 × 12 box, because 2² + 6² + 12² = 184.
- Since √184 = 2√46, a length of √184 is exactly 2 copies of the length √46 laid end to end.
Square roots near √184 and related roots
| Root | Simplest form | Decimal | Perfect square? |
|---|---|---|---|
| √181 | √181 | 13.4536 | No |
| √182 | √182 | 13.4907 | No |
| √183 | √183 | 13.5277 | No |
| √184 | 2√46 | 13.5647 | No |
| √185 | √185 | 13.6015 | No |
| √186 | √186 | 13.6382 | No |
| √187 | √187 | 13.6748 | No |
- The cube root of 184 is about 5.687734.
- Four times the radicand doubles the root: √736 = 2 × √184 ≈ 27.12932.
Frequently asked questions
What is the square root of 184?
The square root of 184 is 2√46 in simplest radical form, which is about 13.5646599663. The negative root, −13.564660, also squares to 184.
Is the square root of 184 rational or irrational?
Irrational. 184 is not a perfect square — it falls between 169 and 196 — and the square root of any whole number that is not a perfect square cannot be written as a fraction.
Can √184 be simplified?
Yes. The largest perfect square dividing 184 is 4, so √184 = √4 × √46 = 2√46.
What is √184 rounded to two decimal places?
√184 ≈ 13.56 to two decimal places (13.6 to one, 13.565 to three). Check: 13.56² = 183.8736, close to 184.