#2 Journey Method or Method of Loci
The method of pegging a list to our mental memories of our homes or immediate surroundings doesn’t have to be limited to individual items. Instead, the Method of Loci has people recall information as they make their way through an imaginary journey.
Attach information to landmarks along your journey and when you want to access this knowledge, simply walk through the imaginary landscape in your mind. This technique can help you learn the sequence of specific numbers.