# Ulam spiral

> a visualization of the prime numbers formed by arranging the integers into a spiral

**Wikidata**: [Q842172](https://www.wikidata.org/wiki/Q842172)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ulam_spiral)  
**Source**: https://4ort.xyz/entity/ulam-spiral


## References

1. Freebase Data Dumps. 2013