摘要
研究了Erdos与Rosenfeld提出的一个关于正整数的因子差集合的猜想,用初等简洁的方法证明了存在k个正整数N1<N2<…Nk,使得|(?)D(N)|≥2。
In this paper the author makes a study of the conjecture made by Erdoes and Rosenfeld regarding a set of factor-differences of positive integers.With a elementary and simple approach, the author demonstrates the fact that if there are k positive integers（N1〈N2〈……〈Nk）,then we have got such an equation as follows：｜k∩i=1D（Ni）｜≥2
