From 6b42ae42bcdd4ea8e70139966a69df2c914aecb3 Mon Sep 17 00:00:00 2001
From: JPHITA <jphita18@gmail.com>
Date: Sat, 25 Mar 2023 20:59:54 -0500
Subject: [PATCH] .

---
 src/factorial.js  | 6 ++++--
 src/fibonacci.js  | 8 +++++++-
 src/primalidad.js | 9 ++++++++-
 3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/src/factorial.js b/src/factorial.js
index 4f3ae70..3689cc8 100644
--- a/src/factorial.js
+++ b/src/factorial.js
@@ -1,5 +1,7 @@
-const factorial = (number) => {
-  // your code here
+const factorial = (number, r=1) => {
+  if (number <= 1) return r;
+
+  return factorial(number - 1, r * number);
 }
 
 module.exports = factorial;
\ No newline at end of file
diff --git a/src/fibonacci.js b/src/fibonacci.js
index ea3270f..fa48efc 100644
--- a/src/fibonacci.js
+++ b/src/fibonacci.js
@@ -1,5 +1,11 @@
 const fibonacci = (n) => {
-  // your code here
+  let r = [0, 1];
+
+  for (let i = 2; i <= n; i++) {
+    r.push( r.at(-1) + r.at(-2) );
+  }
+
+  return r.slice(1);
 }
 
 module.exports = fibonacci;
\ No newline at end of file
diff --git a/src/primalidad.js b/src/primalidad.js
index 8bdb849..9e0157b 100644
--- a/src/primalidad.js
+++ b/src/primalidad.js
@@ -1,5 +1,12 @@
 const trialDivision = (number) => {
-  // your code here
+  if (number == 2) return true;
+  if (number <= 1 || number%2 == 0) return false;
+
+  for (let i = 3; i <= Math.ceil(Math.sqrt(number)); i += 2) {
+    if (number % i == 0) return false;
+  }
+
+  return true;
 }
 
 module.exports = trialDivision;
\ No newline at end of file