Top network posts
- 26 Is it possible to send email to many people but different recipients see their own address only in the "To:" field?
- 21 3x3 "Magic Square" of Prime Numbers
- 19 I can get you to many places. Guess what am I?
- 9 An alien comes to Earth and says $7\times7=41$. How many fingers does he have?
- 9 Find the product, if we know 5 of them
- 8 In a 3x3 grid with 9 consecutive integers, prove there is at least one sum of 3 integers horizontally, vertically or diagonally that is divisible by 3
- 8 3x3 “Magic Square” of Prime Numbers -- Part II
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