[darekkay]

> the first number you put out will be remembered

This is called anchoring effect, a psychological bias.

[robocat]

I think you meant "anchoring bias": https://www.scribbr.com/research-bias/anchoring-bias/

Anchoring effect is something related but subltley different: https://en.m.wikipedia.org/wiki/Anchoring_effect

[kgwgk]

Is it? If you visit

https://www.wikipedia.org/wiki/List_of_cognitive_biases#Anch...

and follow the first link labeled

  Main article: Anchoring (cognitive bias)

you may be surprised.

Actually, you may also read the first link you sent and be equally surprised:

  Anchoring bias (also known as anchoring heuristic or anchoring effect)

https://www.scribbr.com/research-bias/anchoring-bias/#what