Square roots·√39
√39 =
√39
≈ 6.244998

Square root of 39 — 6.244998 (√39)

Irrational

The square root of 39 is about 6.244998, or exactly √39. It lies between 6 and 7.

As a decimal
≈ 6.244998
Simplified surd
√39 = √39
Between
6 < √39 < 7
Squared
39² = 1521
Cube root
∛39 ≈ 3.391211

Nearby numbers

√36 = 6√37 = √37√38 = √38√40 = 2√10√41 = √41√42 = √42

From 1 to 200

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200

How to read this

  • The decimal is rounded; the surd form is the exact value.
  • Pulling out a square factor simplifies the surd — √50 = 5√2.
  • If the number is not a perfect square, the decimal never ends (irrational).
  • Knowing which two integers it sits between is enough to estimate in your head.

Frequently asked questions

Q. What is the square root of 39?

About 6.244998, or exactly √39.

Q. Can the surd be simplified?

No — there is no square factor to pull out.

Q. Between which integers does it fall?

Between 6 and 7.

Q. What is the cube root of 39?

About 3.391211.