For example, if the SCI retrieval system contains participating journals, then the journals are SCI journals. The so-called impact factor is not the impact factor of the paper, but the impact factor of the journal, which is a score comprehensively calculated according to many factors such as the ranking and grade of previous published documents cited by other articles.
If you publish an article in a journal with an impact factor of 5, it is equivalent to that your article has an impact factor of 5.