--- id: 5900f3ef1000cf542c50ff01 challengeType: 5 title: 'Problem 129: Repunit divisibility' videoUrl: '' localeTitle: '' --- ## Description undefined ## Instructions undefined ## Tests ```yml tests: - text: '' testString: 'assert.strictEqual(euler129(), 1000023, "euler129() should return 1000023.");' ``` ## Challenge Seed ```js function euler129() { // Good luck! return true; } euler129(); ``` ## Solution ```js // solution required ```
euler129()