Mathf.PerlinNoise is always returning "0.4652731" regardless of the input

Hello everyone, I am working on a terrain generation script using unity`s perlin noise, but for some odd reason it always returns "0.4652731" regardless of the input. I used the following code:

         float prntFloatA = Mathf.PerlinNoise(1, 1);
         print("#" + prntFloatA);
         float prntFloatB = Mathf.PerlinNoise(1, 3);
         print("#" + prntFloatB);
         float prntFloatC = Mathf.PerlinNoise(37, 62);
         print("#" + prntFloatC);

this is the simple version, previously i was trying to create a 100x100 texture and i got the same number every time so im prety sure all inputs will give me the same #. i am using an old-ish pc which i suspect could be the problem but i would like someone to confirm it. Thanks a lot and i would realy apreciate if you had some advice or some other method to create a procedural terrain.