diff -r 1cf4f1e930af -r 518a1464f1ac src/HOL/Computational_Algebra/Computation_Checks.thy
--- a/src/HOL/Computational_Algebra/Computation_Checks.thy	Sun Nov 02 19:47:30 2025 +0100
+++ b/src/HOL/Computational_Algebra/Computation_Checks.thy	Sun Nov 02 20:01:43 2025 +0100
@@ -13,11 +13,19 @@
 \<close>
 
 text \<open>
-  @{lemma \<open>prime (997 :: nat)\<close> by eval}
+  @{lemma \<open>prime (97 :: nat)\<close> by simp}
 \<close>
 
 text \<open>
-  @{lemma \<open>prime (997 :: int)\<close> by eval}
+  @{lemma \<open>prime (97 :: int)\<close> by simp}
+\<close>
+
+text \<open>
+  @{lemma \<open>prime (9973 :: nat)\<close> by eval}
+\<close>
+
+text \<open>
+  @{lemma \<open>prime (9973 :: int)\<close> by eval}
 \<close>
 
 text \<open>