--- id: 5900f4431000cf542c50ff56 challengeType: 5 title: 'Problem 215: Crack-free Walls' videoUrl: '' localeTitle: '' --- ## Description undefined ## Instructions undefined ## Tests ```yml tests: - text: '' testString: 'assert.strictEqual(euler215(), 806844323190414, "euler215() should return 806844323190414.");' ``` ## Challenge Seed ```js function euler215() { // Good luck! return true; } euler215(); ``` ## Solution ```js // solution required ```
euler215()