Issue #27895:  Spelling fixes (Contributed by Ville Skyttä).
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
index 7ebf8e8..b945bd6 100644
--- a/Modules/mathmodule.c
+++ b/Modules/mathmodule.c
@@ -1274,7 +1274,7 @@
 
 /* Divide-and-conquer factorial algorithm
  *
- * Based on the formula and psuedo-code provided at:
+ * Based on the formula and pseudo-code provided at:
  * http://www.luschny.de/math/factorial/binarysplitfact.html
  *
  * Faster algorithms exist, but they're more complicated and depend on