# The Phone Number puzzle

> 全文为英语

**Published:** 2026年9月25日
**Author:** 3Blue1Brown
**Source:** YouTube — Andrej Karpathy
**Language:** en-US
**HTML:** https://aiqazaqstan.com/zh/articles/the-phone-number-puzzle

Here's a surprising fact. If you take your phone number, it's possible to find another whole number bigger than zero such that multiplying the two of these results in an even bigger number consisting of just ones and zeros. What's more, if your phone number happens to end with a…

> 内容来自原始来源： **YouTube — Andrej Karpathy**
> [在 YouTube — Andrej Karpathy 阅读全文](https://www.youtube.com/shorts/ausLKMojXaY)

**标签：** #YouTube

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