freeCodeCamp/curriculum/challenges/english/08-coding-interview-prep/project-euler/problem-168-number-rotations.english.md

id	challengeType	title	forumTopicId
5900f4151000cf542c50ff27	5	Problem 168: Number Rotations	301802

Description

Consider the number 142857. We can right-rotate this number by moving the last digit (7) to the front of it, giving us 714285. It can be verified that 714285=5×142857. This demonstrates an unusual property of 142857: it is a divisor of its right-rotation. Find the last 5 digits of the sum of all integers n, 10 < n < 10100, that have this property.

Instructions

Tests

tests:
  - text: <code>euler168()</code> should return 59206.
    testString: assert.strictEqual(euler168(), 59206);

Challenge Seed

function euler168() {
  // Good luck!
  return true;
}

euler168();

Solution

// solution required