diff --git a/doc/utils.texi b/doc/utils.texi
index 232a0608b3..627b55d154 100644
--- a/doc/utils.texi
+++ b/doc/utils.texi
@@ -1073,13 +1073,13 @@ indication of the corresponding powers of 10 and of 2.
 @item T
 10^12 / 2^40
 @item P
-10^15 / 2^40
+10^15 / 2^50
 @item E
-10^18 / 2^50
+10^18 / 2^60
 @item Z
-10^21 / 2^60
+10^21 / 2^70
 @item Y
-10^24 / 2^70
+10^24 / 2^80
 @end table
 
 @c man end EXPRESSION EVALUATION