WorkedMathGlossary

Square Root of 42

The square root of 42 is approximately 6.480741, or exactly √42 in simplified radical form. No, 42 is not a perfect square. Its square root is irrational and never terminates or repeats as a decimal.

42
6.480741
Simplified Radical Form
√42
Perfect Square
No

42 is irrational — its decimal form (6.480741) never terminates or repeats. The simplified radical form (√42) is the exact value.

Frequently Asked Questions

What is the square root of 42?

The square root of 42 is approximately 6.480741, or exactly √42 in simplified radical form.

Is 42 a perfect square?

No, 42 is not a perfect square. Its square root is irrational and never terminates or repeats as a decimal.

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