Square Root of 400 Simplified
Simplify Square Root Calculator
What is the square root of 400 simplified?
Answer
√400 = 20
400 is a perfect square — 400 = 20², so no radical remains: √400 = 20.
Simplifying √400 Step by Step
1. Prime factorization. — All Prime Factors of 400:
400 = 2 × 2 × 2 × 2 × 5 × 5 = 24 × 52
2. Pair up equal primes. Each pair is a perfect square and comes out of the root as one factor; a prime without a partner stays under the radical.
| Prime factor | Times in 400 | Comes out of the root | Stays under the root |
|---|---|---|---|
| 2 | 4 | 22 | — |
| 5 | 2 | 5 | — |
3. Take the pairs out of the root.
√400 = √((2 × 2) × (2 × 2) × (5 × 5))
= 2 × 2 × 5
= 20
4. Check by squaring back.
20² = 20 × 20 = 400
Related Calculations
See Also
- Square Root Calculator - Calculate the square root of any number
- Factors of a Number - List all Factors and Factor Pairs of a Number
- Prime Number Checker - Find out whether a given number is Prime or not
- Prime Factorization - Prime Factorization Calculator
- Prime Numbers List - List of all Prime Numbers - how many Prime numbers are between
Simplify Square Root Calculator
This calculator writes a square root in simplest radical form: it finds the largest perfect square that divides the number, takes its root out of the radical and leaves the rest under it. For example, it can help you find out what is the square root of 400 simplified? (The answer is: 20). Enter a whole number (e.g. '400') and hit the 'Simplify' button.
Simplified Square Roots Table
| Number | Simplest radical form | Decimal value |
|---|---|---|
| 292 | 2√73 | ≈ 17.088 |
| 293 | √293 | ≈ 17.117 |
| 294 | 7√6 | ≈ 17.146 |
| 295 | √295 | ≈ 17.176 |
| 296 | 2√74 | ≈ 17.205 |
| 297 | 3√33 | ≈ 17.234 |
| 298 | √298 | ≈ 17.263 |
| 299 | √299 | ≈ 17.292 |
| 300 | 10√3 | ≈ 17.321 |
| 312 | 2√78 | ≈ 17.664 |
| 325 | 5√13 | ≈ 18.028 |
| 330 | √330 | ≈ 18.166 |
| 363 | 11√3 | ≈ 19.053 |
| 375 | 5√15 | ≈ 19.365 |
| 385 | √385 | ≈ 19.621 |
| 400 | 20 | 20 |
| 405 | 9√5 | ≈ 20.125 |
| 432 | 12√3 | ≈ 20.785 |
| 450 | 15√2 | ≈ 21.213 |
| 480 | 4√30 | ≈ 21.909 |
| 495 | 3√55 | ≈ 22.249 |
| 500 | 10√5 | ≈ 22.361 |
| 507 | 13√3 | ≈ 22.517 |
| 514 | √514 | ≈ 22.672 |
| 525 | 5√21 | ≈ 22.913 |
| 528 | 4√33 | ≈ 22.978 |
| 550 | 5√22 | ≈ 23.452 |
| 600 | 10√6 | ≈ 24.495 |
| 675 | 15√3 | ≈ 25.981 |
| 720 | 12√5 | ≈ 26.833 |
FAQ
What is the square root of 400 simplified?
√400 = 20
Is 400 a perfect square?
Yes: 400 = 20², so √400 = 20 exactly and nothing stays under the radical.
What is √400 as a decimal?
√400 = 20 exactly — a whole number, because 400 is a perfect square.
What is the largest perfect square that divides 400?
400 itself: it is 20², so √400 = 20.
See Also
- Square Root of 297 Simplified (3√33)
- Square Root of 298 Simplified (already simplest)
- Square Root of 299 Simplified (already simplest)
- Square Root of 300 Simplified (10√3)
- Square Root of 312 Simplified (2√78)
- Square Root of 325 Simplified (5√13)
- Square Root of 330 Simplified (already simplest)
- Square Root of 363 Simplified (11√3)
- Square Root of 375 Simplified (5√15)
- Square Root of 385 Simplified (already simplest)
- Square Root of 405 Simplified (9√5)
- Square Root of 432 Simplified (12√3)
- Square Root of 450 Simplified (15√2)
- Square Root of 480 Simplified (4√30)
- Square Root of 495 Simplified (3√55)
- Square Root of 500 Simplified (10√5)
- Square Root of 507 Simplified (13√3)
- Square Root of 514 Simplified (already simplest)
- Square Root of 525 Simplified (5√21)
- Square Root of 528 Simplified (4√33)
- Вынести множитель из-под знака корня √400 (= 20)
- Simplificar la raíz cuadrada de 400 (= 20)
- Simplificar a raiz quadrada de 400 (= 20)