Changes in a rectangular parallelepiped are expressed in prime numbers; its volume is 66 cm2.

First of all, note that prime numbers are those whose y have only two divisors – one and the number itself.
Examples of such numbers: 7, 11, 37, 101, etc.
In order to determine what the dimensions of the desired parallelepiped can be, if they are prime numbers, you first need to decompose the value of the parallelepiped’s volume (66 cm 3 according to the specification) into prime factors:
66 = 2 * 3 * 11.
As a result, we received an answer, because there can be no other options.
Answer: 2 cm, 3 cm and 11 cm.