R3CK0N

Square root of 41

√41 ≈ 6.4031. The square root of 41 is about 6.4031. 41 is not a perfect square, so √41 is irrational: its decimals never end or repeat.

√41 at a glance.
Value6.40312424
Rounded6.4 (1 dp) · 6.40 (2 dp) · 6.403 (3 dp)
Simplest radical form√41
Perfect square?No — between 6² = 36 and 7² = 49
41 squared1,681

Estimating √41 in your head

Start from the nearest perfect square, 6² = 36. 41 is 5 more than that. Divide the difference by twice the root, 12, and add it:

√41 ≈ 6 + 5 ÷ 12 ≈ 6.417

The true value is 6.4031, so the one-step estimate is off by about 0.014. The estimate always comes out slightly high, and it is closest when 41 is near a perfect square. The method is explained in estimating square roots in your head.

Can √41 be simplified?

No. 41 has no perfect-square factor besides 1, so √41 is already in simplest radical form.

Frequently asked questions

What is the square root of 41?

The square root of 41 is about 6.4031. 41 is not a perfect square, so √41 is irrational: its decimals never end or repeat.

Is 41 a perfect square?

No. It lies between 6² = 36 and 7² = 49.

What is √41 in simplest radical form?

√41 is already in simplest form: 41 has no square factor other than 1.

Practise estimating square roots

Nearby: √40 · √42 · all square roots to 150