diff --git a/papers/fermat/fermat.tex b/papers/fermat/fermat.tex
index 6ec928b..987a75f 100644
--- a/papers/fermat/fermat.tex
+++ b/papers/fermat/fermat.tex
@@ -358,7 +358,7 @@ $$\prod \{2,2\} + \prod \{3,3,5,5,13,13,17,17\} = \{10989229\};$$
 gives a larger prime number 10989229 and so on.
 
 \subsection{fishing with cubic primes}
-Fishing with primes cubes reveals larger primes quicker: take
+Fishing with primes cubed reveals larger primes quicker: take
 $$ \prod \{2,2,2,5,5,5,11,11,11\} + \prod \{3,3,3,7,7,7,13,13,13\} = \prod \{ 383 ,  56599 \} \; ,$$
 Adding 56599 as a single uncommon factor;
 $$ \prod \{2,2,2,5,5,5,11,11,11\} + \prod \{3,3,3,7,7,7,13,13,13,56599\} = \prod \{ 151, 359, 1553, 13679 \} \; , $$