> For the complete documentation index, see [llms.txt](https://trizen.gitbook.io/sidef-lang/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://trizen.gitbook.io/sidef-lang/programming_tasks/b/babbage_problem.md).

# Babbage problem

```ruby
var n = 0
while (n*n % 1000000 != 269696) {
    n += 2
}
say n
```

#### Output:

```
25264
```