2018-10-08 17:51:51 +00:00
---
2018-10-10 20:20:40 +00:00
id: 5900f52c1000cf542c51003e
2018-10-08 17:51:51 +00:00
challengeType: 5
title: 'Problem 447: Retractions C'
2018-10-10 20:20:40 +00:00
videoUrl: ''
localeTitle: 'Problema 447: Retracciones C'
2018-10-08 17:51:51 +00:00
---
## Description
2018-10-10 20:20:40 +00:00
< section id = "description" > Para cada entero n> 1, la familia de funciones fn, a, b está definida por fn, a, b (x) ≡ax + b mod n para a, b, x entero y 0 < p > F (N) = ∑R (n) para 2≤n≤N. F (107) ≡638042271 (mod 1 000 000 007). < / p > < p > Encuentre F (1014) (mod 1 000 000 007). < / p > < / section >
2018-10-08 17:51:51 +00:00
## Instructions
2018-10-10 20:20:40 +00:00
< section id = "instructions" >
2018-10-08 17:51:51 +00:00
< / section >
## Tests
< section id = 'tests' >
```yml
tests:
- text: < code > euler447()</ code > debe devolver 530553372.
testString: 'assert.strictEqual(euler447(), 530553372, "< code > euler447()< / code > should return 530553372.");'
```
< / section >
## Challenge Seed
< section id = 'challengeSeed' >
< div id = 'js-seed' >
```js
function euler447() {
// Good luck!
return true;
}
euler447();
2018-10-10 20:20:40 +00:00
2018-10-08 17:51:51 +00:00
```
< / div >
< / section >
## Solution
< section id = 'solution' >
```js
// solution required
```
< / section >