IMO 1960 Problem 1
- Day 1
Determine all three-digit numbers having the property that is divisible by 11, and is equal to the sum of the squares of the digits of .
Official text Transcription from AI-MO AoPS, checked word for word against the official paper. Quoted with source.
Official text: IMO 1960 official English paper, page 1.
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.