Abstract:
The concept of the Integer density distribution is put forward and preliminarily studied. When It is applied to analyse the effect of the Eratosthenes’ sieve, the prime density D is proved to satisfy

. The prime density

has not been completely proved in this paper, while the train of thought and the method to approach the conclusion are found. The mathematicians who accept this train of thought are expected to further study and put forward the authoritative demonstrations. The prime density is the foundation of the prime distribution and all prime conjecture, based on which, most prime issues can be solved.