Primes and Semiprimes Of First 50 Million Numbers

This dataset contains all positive natural numbers from 1 to 50 million and includes data on whether or not the number is:

- Prime
- Happy prime
- Semiprime
- Discrete semiprime (also known as squarefree semiprime)

**License Info**

Most of my datasets, models, and research, including this one, are published with [the CC BY-NC 4.0 license](https://creativecommons.org/licenses/by-nc/4.0/), which means you can use this however you want for non-commercial purposes as long as you provide attribution. If you require a commercial license, [connect with me on my site](https://frankcorso.me/).

本数据集包含从1至5000万的所有正整数，并记录了以下信息：
- 是否为质数
- 是否为快乐质数
- 是否为半质数
- 是否为离散半质数（亦称平方质半质数）。

**许可信息**
我的大多数数据集、模型以及研究，包括本数据集，均遵循[CC BY-NC 4.0许可协议](https://creativecommons.org/licenses/by-nc/4.0/)发布，这意味着您可以在非商业用途下自由使用，前提是您必须提供署名。如需商业许可，请通过我的网站与我联系。