What is that number?

新用户

There is a number less than 3000 that
when divided by 2 leaves a remander of 1,
when divided by 3 leaves a remander of 2,
when divided by 4 leaves a remander of 3,
When divided by 5 leaves a remander of 4,
when divided by 6 leaves a remander of 5,
and so on up to nine.

What is that number?

最好能给出思路，而不仅仅是答案

www.ddhw.com

 

tcpip004

如果把这个数加一，就可以整除2，3，4，5，6，7，8，9。那么求他们的最小公倍数就可以了。 这个数是： 9×8×7×6－1 ＝ 2519 www.ddhw.com

google来的？

  7，8，9从哪里来的？