freeCodeCamp/curriculum/challenges/portuguese/10-coding-interview-prep/project-euler/problem-447-retractions-c.md

id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
5900f52c1000cf542c51003e	Problem 447: Retractions C	5	302119	problem-447-retractions-c

--description--

For every integer n>1, the family of functions fn,a,b is defined

by fn,a,b(x)≡ax+b mod n for a,b,x integer and 0

F(N)=∑R(n) for 2≤n≤N. F(107)≡638042271 (mod 1 000 000 007).

Find F(1014) (mod 1 000 000 007).

--hints--

euler447() should return 530553372.

assert.strictEqual(euler447(), 530553372);

--seed--

--seed-contents--

function euler447() {

  return true;
}

euler447();

--solutions--

// solution required