freeCodeCamp/curriculum/challenges/english/08-coding-interview-prep/project-euler/problem-248-numbers-for-which-eulers-totient-function-equals-13.english.md

id	challengeType	title	forumTopicId
5900f4651000cf542c50ff77	5	Problem 248: Numbers for which Euler’s totient function equals 13!	301895

Description

The first number n for which φ(n)=13! is 6227180929. Find the 150,000th such number.

Instructions

Tests

tests:
  - text: <code>euler248()</code> should return 23507044290.
    testString: assert.strictEqual(euler248(), 23507044290);

Challenge Seed

function euler248() {
  // Good luck!
  return true;
}

euler248();

Solution

// solution required