Square Root of 157 Simplified

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What is the square root of 157 simplified?

Answer

√157 cannot be simplified — its simplest radical form is
√157

√157 is already in simplest form — 157 has no square factor other than 1, so nothing comes out of the radical. As a decimal, √157 ≈ 12.53.

Simplifying √157 Step by Step

1. Prime factorization. — All Prime Factors of 157:

157 is a prime number

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 157Comes out of the rootStays under the root
1571—157

3. Take the pairs out of the root.

No prime appears twice, so there is no pair to take out.

√157

4. Check by squaring back.

The only perfect square dividing 157 is 1 = 1², and 1² × 157 = 157

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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 157 simplified? (The answer is: √157). Enter a whole number (e.g. '157') and hit the 'Simplify' button.
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Simplified Square Roots Table

NumberSimplest radical formDecimal value
142√142≈ 11.916
143√143≈ 11.958
1441212
145√145≈ 12.042
146√146≈ 12.083
1477√3≈ 12.124
1482√37≈ 12.166
149√149≈ 12.207
1505√6≈ 12.247
151√151≈ 12.288
1522√38≈ 12.329
1533√17≈ 12.369
154√154≈ 12.41
155√155≈ 12.45
1562√39≈ 12.49
157√157≈ 12.53
158√158≈ 12.57
159√159≈ 12.61
1604√10≈ 12.649
161√161≈ 12.689
1629√2≈ 12.728
163√163≈ 12.767
1642√41≈ 12.806
165√165≈ 12.845
166√166≈ 12.884
167√167≈ 12.923
1682√42≈ 12.961
1691313
170√170≈ 13.038
1713√19≈ 13.077

FAQ

What is the square root of 157 simplified?

√157 cannot be simplified — its simplest radical form is √157

Is 157 a perfect square?

No. 157 has no perfect square factor other than 1, so √157 cannot be simplified and stays √157.

What is √157 as a decimal?

√157 ≈ 12.53. The decimal never ends and never repeats, so it is always rounded; the exact value is √157.

What is the largest perfect square that divides 157?

Only 1. 157 has no other square factor, so √157 is already in simplest radical form.

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