freeCodeCamp/curriculum/challenges/japanese/10-coding-interview-prep/project-euler/problem-290-digital-signature.md

id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
5900f48f1000cf542c50ffa1	Problem 290: Digital Signature	5	301942	problem-290-digital-signature

--description--

How many integers 0 ≤ n < {10}^{18} have the property that the sum of the digits of n equals the sum of digits of 137n?

--hints--

digitalSignature() should return 20444710234716470.

assert.strictEqual(digitalSignature(), 20444710234716470);

--seed--

--seed-contents--

function digitalSignature() {

  return true;
}

digitalSignature();

--solutions--

// solution required