![Puzzle 68.- The largest prime magic squares at the end of this millenium (a puzzle suggested by Jaime Ayala, and previously - 3/6/99 - asked by Warut Roonguthai also) Puzzle 68.- The largest prime magic squares at the end of this millenium (a puzzle suggested by Jaime Ayala, and previously - 3/6/99 - asked by Warut Roonguthai also)](https://www.primepuzzles.net/puzzles/puzz_068_01.gif)
Puzzle 68.- The largest prime magic squares at the end of this millenium (a puzzle suggested by Jaime Ayala, and previously - 3/6/99 - asked by Warut Roonguthai also)
What is a magic square? Is it possible to make a magic square with all prime numbers? How many such squares are there? - Quora
![SALA COMERCIAL - PRIME SQUARE - Av. GETULIO VARGAS - BAURU (SP) - Vila Aviação - Bauru - SP | Imobiliária Bella Citta SALA COMERCIAL - PRIME SQUARE - Av. GETULIO VARGAS - BAURU (SP) - Vila Aviação - Bauru - SP | Imobiliária Bella Citta](https://www.imobiliariabellacitta.com.br/cdn/uploads/imobiliariabellacitta/imoveis/SAL52C96/sala-para-venda-57D10418-851C-4773-B93B-F08336D7F0E9.jpg)