Just Repeat

Problem | Hint | Solution | Printable page |
Stage: 3 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Just repeat!

Think of any three-digit number.
Repeat the digits

e.g.

234 ....... 234 234

973 ...... 973 973


Both 6-digit numbers are divisible by 91.

Is this a coincidence?

Are there other patterns and connections?


Published August 2003.