how many integers n are there such that 5/61大于1/n大于13/57?
问题描述:
how many integers n are there such that 5/61大于1/n大于13/57?
答
8个:780,715,650,585,520,455,390
how many integers n are there such that 5/61大于1/n大于13/57?
8个:780,715,650,585,520,455,390