Also, the PMP exam is based on situations/scenarios, there are very few questions which is based on memory.

Hence if you have the 4500 hrs of Project Management experience and 35 hrs of PMP Training from REP (registered education partner of PMI) then you don't have to spend more than 2-3 weeks to prepare for the exam.

Conversely, if someone does not have experience and he tries to memorize the PMBOK still it will be difficult for him to pass the exam.