√602 at a glance
- Exact value
- √602
- Decimal (10 places)
- 24.5356882928
- Rounded
- 24.5 · 24.54 · 24.536
- Perfect square?
- No — between 24² and 25²
- Rational?
- Irrational
- Both square roots
- ±24.535688
- Prime factorization
- 2 × 7 × 43
- Cube root
- 8.443688
How to simplify √602
The prime factorization of 602 is 2 × 7 × 43. Every prime appears only once, so there is no pair to bring outside the radical — √602 is already in simplest form (a "square-free" radicand).
A whole number has a rational square root only when every prime in its factorization appears an even number of times. In 602, 2, 7 and 43 appear an odd number of times, so √602 is irrational and 24.5356882928 is a rounded value.
Where √602 sits between perfect squares
576 = 24² and 625 = 25² are the nearest perfect squares, so √602 lies between 24 and 25. 602 is 26 above 576 and 23 below 625, so the root is closer to 25.
- Straight line between 576 and 625: 24.5306 (0.02% low)
- Tangent from 24, i.e. 24 + 26 ÷ 48: 24.5417 (0.02% high)
- Tangent from 25, i.e. 25 − 23 ÷ 50: 24.5400 (0.02% high)
For √602 the tangent at 25 wins, missing by only 0.0043. Tangent estimates shine when the number sits close to a perfect square — here 602 is just 23 below 625.
Finding √602 with the Babylonian method
The idea is ancient. A Babylonian clay tablet catalogued as YBC 7289, about 3,800 years old, records √2 correct to roughly six decimal places, and Heron of Alexandria described this averaging rule in the first century AD.
Start from the nearest whole number, 25 (25² = 625):
| Step | Guess x | 602 ÷ x | Average | Correct decimals |
|---|---|---|---|---|
| 1 | 25.0000000000 | 24.0800000000 | 24.5400000000 | 2 |
| 2 | 24.5400000000 | 24.5313773431 | 24.5356886716 | 6 |
| 3 | 24.5356886716 | 24.5356879140 | 24.5356882928 | all 10 shown |
The count of correct decimals went 2, 6 and all 10 over 3 steps — roughly doubling each time — until the guess matched √602 = 24.5356882928 to every decimal shown.
√602 as a continued fraction
Every irrational square root has a continued fraction that repeats. For √602 the pattern is [24; 1, 1, 6, 1, 1, 48] with the block of 6 terms after the semicolon repeating forever. A pattern that never ends is one more proof that √602 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 |
|---|---|---|
| 24/1 | 24.0000000000 | 5.4 × 10⁻¹ |
| 25/1 | 25.0000000000 | 4.6 × 10⁻¹ |
| 49/2 | 24.5000000000 | 3.6 × 10⁻² |
| 319/13 | 24.5384615385 | 2.8 × 10⁻³ |
| 368/15 | 24.5333333333 | 2.4 × 10⁻³ |
| 687/28 | 24.5357142857 | 2.6 × 10⁻⁵ |
The same fractions solve Pell’s equation, x² − 602y² = 1. Its smallest solution in positive whole numbers is x = 687, y = 28.
√602 in geometry and everyday measurements
- A square garage floor of 602 square feet measures about 24.54 ft (24 ft 6 in) per side, and its corner-to-corner diagonal is √1204 ≈ 34.7 ft.
- 602 is not a sum of two whole-number squares — the prime factor 7 and 43 (one less than a multiple of 4) appears an odd number of times, which rules that out — so √602 is never the diagonal of a rectangle with whole-number sides. It is, however, the space diagonal of a 1 × 5 × 24 box, because 1² + 5² + 24² = 602.
Square roots near √602 and related roots
| Root | Simplest form | Decimal | Perfect square? |
|---|---|---|---|
| √599 | √599 | 24.4745 | No |
| √600 | 10√6 | 24.4949 | No |
| √601 | √601 | 24.5153 | No |
| √602 | √602 | 24.5357 | No |
| √603 | 3√67 | 24.5561 | No |
| √604 | 2√151 | 24.5764 | No |
| √605 | 11√5 | 24.5967 | No |
- The cube root of 602 is about 8.443688.
- Squaring undoes the root: (√602)² = 602, while 602² = 362,404 — the number whose square root is 602.
Frequently asked questions
What is the square root of 602?
The square root of 602 is √602, about 24.5356882928. The negative root, −24.535688, also squares to 602.
Is the square root of 602 rational or irrational?
Irrational. 602 is not a perfect square — it falls between 576 and 625 — and the square root of any whole number that is not a perfect square cannot be written as a fraction.
Can √602 be simplified?
No. 602 = 2 × 7 × 43 has no repeated prime factor, so there is no perfect square to take out of the radical.
What is √602 rounded to two decimal places?
√602 ≈ 24.54 to two decimal places (24.5 to one, 24.536 to three). Check: 24.54² = 602.2116, close to 602.