--- id: 5900f4491000cf542c50ff5c challengeType: 5 title: 'Problem 221: Alexandrian Integers' videoUrl: '' localeTitle: '' --- ## Description undefined ## Instructions undefined ## Tests ```yml tests: - text: '' testString: 'assert.strictEqual(euler221(), 1884161251122450, "euler221() should return 1884161251122450.");' ``` ## Challenge Seed ```js function euler221() { // Good luck! return true; } euler221(); ``` ## Solution ```js // solution required ```
euler221()