What is 27 in surd form?

sqrt(27) =

sqrt(3 x 9) =>

sqrt(3) x sqrt(9) =>

sqrt(3) X 3 =>

3*sqrt(3)

3* 1.732050808..... =>

5.196152423.....

NB

'Sqrt' of prime numbers are IRRATIONAL.

Since '3' is a Prime number, then its sqrt(3) is irrational at 1.73206080.....

NNB The product of a rational number and an irrational number is irrational.