文件名称：欧拉计划1-50题
文件大小：112KB
文件格式：DOC
更新时间：2015-04-17 14:56:14
欧拉计划
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000.