--- id: 5900f3bc1000cf542c50fecf challengeType: 5 title: 'Problem 80: Square root digital expansion' videoUrl: '' localeTitle: '' --- ## Description undefined ## Instructions undefined ## Tests ```yml tests: - text: '' testString: 'assert.strictEqual(euler80(), 40886, "euler80() should return 40886.");' ``` ## Challenge Seed ```js function euler80() { // Good luck! return true; } euler80(); ``` ## Solution ```js // solution required ```
euler80()