diff --git a/src/key.rs b/src/key.rs
index f3ec86c..b7747d6 100644
--- a/src/key.rs
+++ b/src/key.rs
@@ -174,9 +174,6 @@ impl RsaPublicKey {
     /// Maximum size of the modulus `n` in bits.
     pub const MAX_SIZE: usize = 4096;
 
-    /// Minimum size of the modulus `n` in bits.
-    pub const MIN_SIZE: usize = 16;
-
     /// Create a new public key from its components.
     ///
     /// This function accepts public keys with a modulus size up to 4096-bits,
@@ -507,11 +504,7 @@ pub fn check_public(public_key: &impl PublicKeyParts) -> Result<()> {
 /// Check that the public key is well formed and has an exponent within acceptable bounds.
 #[inline]
 fn check_public_with_max_size(public_key: &impl PublicKeyParts, max_size: usize) -> Result<()> {
-    let public_bits = public_key.n().bits();
-    if public_bits < RsaPublicKey::MIN_SIZE {
-        return Err(Error::InvalidModulus);
-    }
-    if public_bits > max_size {
+    if public_key.n().bits() > max_size {
         return Err(Error::ModulusTooLarge);
     }