diff --git a/Cargo.lock b/Cargo.lock
index 98e03b2cb1..8b3317d6f4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1941,7 +1941,6 @@ dependencies = [
  "mime_guess",
  "nix",
  "pretty_assertions",
- "primes",
  "pulldown-cmark",
  "rayon",
  "redb",
@@ -2111,12 +2110,6 @@ dependencies = [
  "yansi",
 ]
 
-[[package]]
-name = "primes"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68a61082d8bceecd71a3870e9162002bb75f7ba9c7aa8b76227e887782fef9c8"
-
 [[package]]
 name = "proc-macro-crate"
 version = "0.1.5"
diff --git a/Cargo.toml b/Cargo.toml
index 1dd365182e..c19e127a4a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,7 +30,6 @@ http = "0.2.6"
 lazy_static = "1.4.0"
 log = "0.4.14"
 mime_guess = "2.0.4"
-primes = "0.3.0"
 rayon = "1.5.1"
 redb = "0.7.0"
 regex = "1.6.0"
diff --git a/src/ordinal.rs b/src/ordinal.rs
index b57fcaad25..5af2405bdc 100644
--- a/src/ordinal.rs
+++ b/src/ordinal.rs
@@ -52,10 +52,6 @@ impl Ordinal {
     self.into()
   }
 
-  pub(crate) fn prime(self) -> bool {
-    primes::is_prime(self.0)
-  }
-
   pub(crate) fn name(self) -> String {
     let mut x = Self::SUPPLY - self.0;
     let mut name = String::new();
diff --git a/src/subcommand/server/templates/ordinal.rs b/src/subcommand/server/templates/ordinal.rs
index 174717da13..6c6c7fe895 100644
--- a/src/subcommand/server/templates/ordinal.rs
+++ b/src/subcommand/server/templates/ordinal.rs
@@ -37,7 +37,6 @@ mod tests {
           <dt>block</dt><dd>0</dd>
           <dt>offset</dt><dd>0</dd>
           <dt>rarity</dt><dd><span class=mythic>mythic</span></dd>
-          <dt>prime</dt><dd>false</dd>
           <dt>time</dt><dd>1970-01-01 00:00:00</dd>
         </dl>
         <a>prev</a>
@@ -47,18 +46,6 @@ mod tests {
     );
   }
 
-  #[test]
-  fn two_is_prime() {
-    assert_regex_match!(
-      OrdinalHtml {
-        ordinal: Ordinal(2),
-        blocktime: Blocktime::Confirmed(0),
-      }
-      .to_string(),
-      ".*<dt>prime</dt><dd>true</dd>.*",
-    );
-  }
-
   #[test]
   fn ordinal_next_and_previous() {
     assert_eq!(
@@ -80,7 +67,6 @@ mod tests {
           <dt>block</dt><dd>0</dd>
           <dt>offset</dt><dd>1</dd>
           <dt>rarity</dt><dd><span class=common>common</span></dd>
-          <dt>prime</dt><dd>false</dd>
           <dt>time</dt><dd>1970-01-01 00:00:00</dd>
         </dl>
         <a href=/ordinal/0>prev</a>
diff --git a/templates/ordinal.html b/templates/ordinal.html
index f59b73a56c..e87144f597 100644
--- a/templates/ordinal.html
+++ b/templates/ordinal.html
@@ -10,7 +10,6 @@ <h1>Ordinal {{ self.ordinal.n() }}</h1>
   <dt>block</dt><dd>{{ self.ordinal.height() }}</dd>
   <dt>offset</dt><dd>{{ self.ordinal.third() }}</dd>
   <dt>rarity</dt><dd><span class={{self.ordinal.rarity()}}>{{ self.ordinal.rarity() }}</span></dd>
-  <dt>prime</dt><dd>{{ self.ordinal.prime() }}</dd>
   <dt>time</dt><dd>{{ self.blocktime }}</dd>
 </dl>
 %% if self.ordinal.n() > 0 {