Answer:-
Number theory is a branch of mathematics that studies numbers, especially integers and their properties. It explores concepts like prime numbers, divisibility, and mathematical patterns. Ancient mathematicians, including Euclid, contributed to its foundation, while modern applications extend to cryptography, coding theory, and computer security. Topics include greatest common divisors, modular arithmetic, and perfect numbers. Number theory is both theoretical and practical, influencing fields like encryption, digital security, and even quantum computing. Despite its complexity, it plays a crucial role in everyday technologies, making it a fascinating area of mathematics with deep historical roots and real-world applications.
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