The "recycling symbol" on plastics as an indicator that the item is recyclable is a common misconception for many people. This number does not mean that the time can be recycled, rather it is used to denote the type of plastic the items is composed of.
The following guide will help you understand what types of items are made out of each type of plastic. Please note that this guide is not a definitive answer to what is and is not recycleable. It is only meant to educate on the different types of plastics and if they are generally recyclable or not.
The best way to find out if a certain item is recyclable is to check with your specific hauler. You can find information about accepted materials of all Dakota County haulers here.