freeCodeCamp/curriculum/challenges/russian/08-coding-interview-prep/project-euler/problem-446-retractions-b.russian.md

---
id: 5900f52c1000cf542c51003d
challengeType: 5
title: 'Problem 446: Retractions B'
forumTopicId: 302118
localeTitle: 'Задача 446: Отвод B'
---

## Description
<section id='description'>
Для каждого целого n&gt; 1 семейство функций fn, a, b определяется посредством fn, a, b (x) ≡ax + b mod n для a, b, x integer и 0 <p> F (N) = ΣR (n4 + 4) для 1≤n≤N. F (1024) = 77532377300600. </p><p> Найти F (107) (mod 1 000 000 007) </p>
</section>

## Instructions
<section id='instructions'>

</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>euler446()</code> should return 907803852.
    testString: assert.strictEqual(euler446(), 907803852);

```

</section>

## Challenge Seed
<section id='challengeSeed'>

<div id='js-seed'>

```js
function euler446() {
  // Good luck!
  return true;
}

euler446();

```

</div>

</section>

## Solution
<section id='solution'>

```js
// solution required
```

</section>