# Sophie Germain prime

> prime number p where 2p+1 is also prime

**Wikidata**: [Q624025](https://www.wikidata.org/wiki/Q624025)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sophie_Germain_prime)  
**Source**: https://4ort.xyz/entity/sophie-germain-prime


## References

1. Freebase Data Dumps. 2013