The product of two large prime numbers is the basis of effective encryption methods
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The improperly named Vigenère cipher was so strong that it was considered unbreakable.
From the origins of military strategy to today's network transactions, encrypted messages have always had enormous operational importance
In the days of the peseta there were numerous banknotes and a wide variety of coins of different alloys, sizes and values
Filling a backpack optimally can be a less simple problem than it seems
A simple dinner can pose complex combinatorial problems, especially if personal disagreements come into play.
The problems of diners who sit around a table meeting certain requirements constitute an inexhaustible wealth.
The ancient Egyptians expressed rational numbers as sums of distinct unit fractions
British mathematician James Joseph Sylvester made important contributions to discrete geometry
The mathematician and puzzle expert Henri Picciotto devised a gastronomic variant of Frobenius numbers that became very popular