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freeCodeCamp/curriculum/challenges/english/10-coding-interview-prep/project-euler/problem-457-a-polynomial-modulo-the-square-of-a-prime.md
Oliver Eyton-Williams ee1e8abd87 feat(curriculum): restore seed + solution to Chinese (#40683)
* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
2021-01-12 19:31:00 -07:00

730 B

id, title, challengeType, forumTopicId, dashedName
id title challengeType forumTopicId dashedName
5900f5361000cf542c510048 Problem 457: A polynomial modulo the square of a prime 5 302131 problem-457-a-polynomial-modulo-the-square-of-a-prime

--description--

Let f(n) = n2 - 3n - 1.

Let p be a prime.

Let R(p) be the smallest positive integer n such that f(n) mod p2 = 0 if such an integer n exists, otherwise R(p) = 0.

Let SR(L) be ∑R(p) for all primes not exceeding L.

Find SR(107).

--hints--

euler457() should return 2647787126797397000.

assert.strictEqual(euler457(), 2647787126797397000);

--seed--

--seed-contents--

function euler457() {

  return true;
}

euler457();

--solutions--

// solution required