摘要：
Problem Description A number whose only prime factors are 2,3,5 or 7 is called a humble number. The sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, ... shows the first ... 阅读全文
posted @ 2013-05-28 23:00
1002liu
阅读(144)
评论(0)
推荐(0)
浙公网安备 33010602011771号