diff --git a/client/i18n/locales/english/intro.json b/client/i18n/locales/english/intro.json
index 442d505e619..d3a0310f729 100644
--- a/client/i18n/locales/english/intro.json
+++ b/client/i18n/locales/english/intro.json
@@ -3522,6 +3522,12 @@
           "In this lab, you will practice using higher order functions to find the symmetric difference between two arrays."
         ]
       },
+      "lab-sum-all-primes-calculator": {
+        "title": "Build a Prime Number Sum Calculator",
+        "intro": [
+          "In this lab you will build a sum all primes calculator that takes a number and returns the sum of all prime numbers that are less than or equal to that number."
+        ]
+      },
       "review-javascript-higher-order-functions": {
         "title": "JavaScript Higher Order Functions Review",
         "intro": [
diff --git a/client/src/pages/learn/full-stack-developer/lab-sum-all-primes-calculator/index.md b/client/src/pages/learn/full-stack-developer/lab-sum-all-primes-calculator/index.md
new file mode 100644
index 00000000000..bff32062cc2
--- /dev/null
+++ b/client/src/pages/learn/full-stack-developer/lab-sum-all-primes-calculator/index.md
@@ -0,0 +1,9 @@
+---
+title: Introduction to the Build a Sum All Primes Calculator
+block: lab-sum-all-primes-calculator
+superBlock: full-stack-developer
+---
+
+## Introduction to the Build a Sum All Primes Calculator
+
+In this lab you will build a sum all primes calculator that takes a number and returns the sum of all prime numbers that are less than or equal to that number.
diff --git a/curriculum/challenges/english/blocks/lab-sum-all-primes-calculator/a3bfc1673c0526e06d3ac698.md b/curriculum/challenges/english/blocks/lab-sum-all-primes-calculator/a3bfc1673c0526e06d3ac698.md
new file mode 100644
index 00000000000..f37e7aca10a
--- /dev/null
+++ b/curriculum/challenges/english/blocks/lab-sum-all-primes-calculator/a3bfc1673c0526e06d3ac698.md
@@ -0,0 +1,89 @@
+---
+id: a3bfc1673c0526e06d3ac698
+title: Build a Sum All Primes Calculator
+challengeType: 26
+dashedName: build-a-sum-all-primes-calculator
+---
+
+# --description--
+
+In this lab, you will build a calculator that takes a number and returns the sum of all prime numbers that are less than or equal to that number.
+
+**Objective**: Fulfill the user stories below and get all the tests to pass to complete the lab.
+
+**User Stories:**
+
+1. You should have a `sumPrimes` function that accepts a number as an argument.
+1. The `sumPrimes` function should return the sum of all prime numbers less than or equal to the provided number.
+1. If the input number is less than `2`, the function should return `0`.
+
+# --hints--
+
+You should have a `sumPrimes` function.
+
+```js
+assert.isFunction(sumPrimes);
+```
+
+`sumPrimes(10)` should return `17`.
+
+```js
+assert.strictEqual(sumPrimes(10), 17);
+```
+
+`sumPrimes(5)` should return `10`.
+
+```js
+assert.strictEqual(sumPrimes(5), 10);
+```
+
+`sumPrimes(2)` should return `2`.
+
+```js
+assert.strictEqual(sumPrimes(2), 2);
+```
+
+`sumPrimes(0)` should return `0`.
+
+```js
+assert.strictEqual(sumPrimes(0), 0);
+```
+
+`sumPrimes(977)` should return `73156`.
+
+```js
+assert.strictEqual(sumPrimes(977), 73156);
+```
+
+# --seed--
+
+## --seed-contents--
+
+```js
+
+```
+
+# --solutions--
+
+```js
+function sumPrimes(num) {
+  function isPrime(n) {
+    if (n < 2) return false;
+    for (let i = 2; i <= Math.sqrt(n); i++) {
+      if (n % i === 0) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  let sum = 0;
+
+  for (let i = 2; i <= num; i++) {
+    if (isPrime(i)) {
+      sum += i;
+    }
+  }
+  return sum;
+}
+```
diff --git a/curriculum/structure/blocks/lab-sum-all-primes-calculator.json b/curriculum/structure/blocks/lab-sum-all-primes-calculator.json
new file mode 100644
index 00000000000..9fc27a1e6f0
--- /dev/null
+++ b/curriculum/structure/blocks/lab-sum-all-primes-calculator.json
@@ -0,0 +1,15 @@
+{
+  "name": "Build a Sum All Primes Calculator",
+  "isUpcomingChange": false,
+  "dashedName": "lab-sum-all-primes-calculator",
+  "helpCategory": "JavaScript",
+  "blockLayout": "link",
+  "blockType": "lab",
+  "usesMultifileEditor": true,
+  "challengeOrder": [
+    {
+      "id": "a3bfc1673c0526e06d3ac698",
+      "title": "Build a Sum All Primes Calculator"
+    }
+  ]
+}
diff --git a/curriculum/structure/superblocks/full-stack-developer.json b/curriculum/structure/superblocks/full-stack-developer.json
index f7468872935..74ffab7b5f7 100644
--- a/curriculum/structure/superblocks/full-stack-developer.json
+++ b/curriculum/structure/superblocks/full-stack-developer.json
@@ -401,6 +401,7 @@
             "lab-book-organizer",
             "lab-sorted-index-finder",
             "lab-symmetric-difference",
+            "lab-sum-all-primes-calculator",
             "review-javascript-higher-order-functions",
             "quiz-javascript-higher-order-functions"
           ]