diff --git a/algorithms/binary_search.js b/algorithms/binary_search.js
new file mode 100644
index 0000000..3c43846
--- /dev/null
+++ b/algorithms/binary_search.js
@@ -0,0 +1 @@
+var primes = [2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97];