Is the preterite for saber also used for "found out"?

Is the preterite for saber also used for "found out"?
 

Creo que he oído que se use el pretérito del verbo saber para decir __ found out o __ realized. Es eso verdad?

(Also, did I use the subjunctive in the right spot up there with se use? I'm a little unsure.)

se usa (no need for the subjunctive, unless you don't believe)

In the preterite tense, saber can mean 'found out', yes.

Okay, thank you! :)