a word

README.txt

@@ -403,7 +403,7 @@ Submitting results:
   This is because mfakto works on huge factor blocks, controlled by GridSize in
   the INI file. The default value of GridSize=3 means mfakto runs up to 1048576
   factor candidates at once, per class. So the last block of each class is
-  filled up with factor candidates above the upper bit level. This is a huge
+  filled up with factor candidates to above the upper bit level. This is a huge
   overhead for small ranges but can be safely ignored for larger ranges.
   For example, the average overhead is 0.5% for a class with 100 blocks but
   only 0.05% for one with 1000 blocks.