Square Root of 432 Simplified

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What is the square root of 432 simplified?

Answer

√432 = 12√3

432 = 144 × 3, and 144 = 12² is the largest perfect square that divides 432, so √432 = √144 × √3 = 12√3. Check: 12√3 ≈ 20.785, the same as √432 ≈ 20.785.

Simplifying √432 Step by Step

1. Prime factorization. — All Prime Factors of 432:

432 = 2 × 2 × 2 × 2 × 3 × 3 × 3 = 24 × 33

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 factorTimes in 432Comes out of the rootStays under the root
2422—
3333

3. Take the pairs out of the root.

√432 = √((2 × 2) × (2 × 2) × (3 × 3) × 3)

= 2 × 2 × 3 × √3

= 12√3

4. Check by squaring back.

12² × 3 = 144 × 3 = 432

See Also

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 432 simplified? (The answer is: 12√3). Enter a whole number (e.g. '432') and hit the 'Simplify' button.

Simplified Square Roots Table

NumberSimplest radical formDecimal value
2947√6≈ 17.146
295√295≈ 17.176
2962√74≈ 17.205
2973√33≈ 17.234
298√298≈ 17.263
299√299≈ 17.292
30010√3≈ 17.321
3122√78≈ 17.664
3255√13≈ 18.028
330√330≈ 18.166
36311√3≈ 19.053
3755√15≈ 19.365
385√385≈ 19.621
4002020
4059√5≈ 20.125
43212√3≈ 20.785
45015√2≈ 21.213
4804√30≈ 21.909
4953√55≈ 22.249
50010√5≈ 22.361
50713√3≈ 22.517
514√514≈ 22.672
5255√21≈ 22.913
5284√33≈ 22.978
5505√22≈ 23.452
60010√6≈ 24.495
67515√3≈ 25.981
72012√5≈ 26.833
7255√29≈ 26.926
72611√6≈ 26.944

FAQ

What is the square root of 432 simplified?

√432 = 12√3

Is 432 a perfect square?

No. 432 = 144 × 3: its largest perfect square factor is 144 = 12², and the factor 3 stays under the radical, so √432 = 12√3.

What is √432 as a decimal?

√432 ≈ 20.785. The decimal never ends and never repeats, so it is always rounded; the exact value is 12√3.

What is the largest perfect square that divides 432?

144 = 12². Dividing gives 432 ÷ 144 = 3, and 3 has no square factor left, so √432 = √144 × √3 = 12√3.