题目

阅读理解 Nine years ago, a few days before Christmas, I was adirector at a company in San Francisco, and I was called into a meeting thatwas already in progress. That meeting turned out to be my exit interview. I was64 years old at the time. It wasn't completely unexpected. I signed a pile ofpapers and left the company. So, 40 plus years of employment was over. I had a goodreputation and background. Retirement was not a choice for me. I wanted to dosomething. And then an idea came into my mind, born from my concern for ourenvironment. I wanted to build my own business, designing and produc用10以内三个不同的质数，组成一个同时能被3和5整除的最大三位数是________．