diff --git a/pages/common/openssl-genrsa.md b/pages/common/openssl-genrsa.md
index 8a743561a2..5d598cf637 100644
--- a/pages/common/openssl-genrsa.md
+++ b/pages/common/openssl-genrsa.md
@@ -1,7 +1,7 @@
 # openssl genrsa
 
 > OpenSSL command to generate RSA private keys.
-> More information: <https://www.openssl.org/docs/man1.0.2/man1/genrsa.html>.
+> More information: <https://www.openssl.org/docs/manmaster/man1/openssl-genrsa.html>.
 
 - Generate an RSA private key of 2048 bits to stdout:
 
diff --git a/pages/common/openssl-prime.md b/pages/common/openssl-prime.md
new file mode 100644
index 0000000000..ea7a5f114f
--- /dev/null
+++ b/pages/common/openssl-prime.md
@@ -0,0 +1,12 @@
+# openssl prime
+
+> OpenSSL command to compute prime numbers.
+> More information: <https://www.openssl.org/docs/manmaster/man1/openssl-prime.html>.
+
+- Generate a 2048bit prime number and display it in hexadecimal:
+
+`openssl prime -generate -bits 2048 -hex`
+
+- Check if a given number is prime:
+
+`openssl prime {{number}}`