Álgebra modular

Modular algebra deals with calculations where numbers wrap around after reaching a certain value, called the modulus. Imagine a clock: after 12 hours, it cycles back to 1. In modular algebra, we perform operations like addition and multiplication, but the results are always taken "modulo" a specific number, meaning we only care about what's left over after dividing. For example, in mod 5, 7 + 3 equals 0 because 10 divided by 5 leaves a remainder of 0. This system is useful in areas like cryptography, computer science, and number theory for handling cycles and repeating patterns efficiently.