Updated Projects (markdown)
diff --git a/Projects.md b/Projects.md
index 3dd0f74..a870f67 100644
--- a/Projects.md
+++ b/Projects.md
@@ -786,6 +786,7 @@
* [mathutil](http://godoc.org/github.com/cznic/mathutil) - Package mathutil provides utilities supplementing the standard 'math' and 'rand' packages.
* [mt19937\_64](https://github.com/farces/mt19937_64) - Mersenne Twister int64 random source
* [polyclip.go](https://github.com/akavel/polyclip.go) - Go implementation of algorithm for Boolean operations on 2D polygons
+ * [primes](https://github.com/fxtlabs/primes) - Simple functionality for working with prime numbers.
* [pso-go](https://github.com/tenntenn/pso-go) - A library of PSO (Particle Swarm Optimization) for Go.
* [rand](https://bitbucket.org/MaVo159/rand) - 64-bit version of the math/rand package with Mersenne twister support.
* [statistics](https://github.com/grd/stat) - GNU GSL Statistics (GPLv3)
