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curriculum/challenges/italian/10-coding-interview-prep/project-euler/problem-34-digit-factorials.md

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+---
+id: 5900f38e1000cf542c50fea1
+title: 'Problem 34: Digit factorials'
+challengeType: 5
+forumTopicId: 301998
+dashedName: problem-34-digit-factorials
+---
+
+# --description--
+
+145 is a curious number, as 1! + 4! + 5! = 1 + 24 + 120 = 145.
+
+Find the numbers and the sum of the numbers which are equal to the sum of the factorial of their digits.
+
+**Note:** as 1! = 1 and 2! = 2 are not sums they are not included.
+
+# --hints--
+
+`digitFactorial()` should return an object.
+
+```js
+assert.typeOf(digitFactorial(), 'object');
+```
+
+`digitFactorial()` should return { sum: 40730, numbers: [145, 40585] }.
+
+```js
+assert.deepEqual(digitFactorial(), { sum: 40730, numbers: [145, 40585] });
+```
+
+# --seed--
+
+## --seed-contents--
+
+```js
+function digitFactorial() {
+
+  var sum = 0;
+  var numbers = [];
+  return { sum, numbers };
+}
+
+digitFactorial();
+```
+
+# --solutions--
+
+```js
+// solution required
+```