The diagram below shows a figurative (or pictorial) progression based on the number ‘four’. Note that the number ‘four’ is not a prime number, however it clearly illustrates the progression from 1 dimension to 3 dimensions of figurative numbers - A line of 1 dimension progresses to a triangle of 2 dimensions concluding with a pyramid (or tetrahedron) of 3 dimensions. The triangle is the fourth triangular number (10) and the pyramid (tetrahedron) is the fourth pyramid number (20).

This geometrical and dimensional progression is a fundamental building block in the prime-fulfilment pattern.