Number theory Worksheets

Number theory is the branch of mathematics that studies the properties and relationships of whole numbers, especially positive integers. It explores concepts like prime numbers, divisibility, factors, multiples, and the patterns that emerge when numbers interact through addition, multiplication, and division.

Number theory forms the foundation for understanding fractions, algebra, and modular arithmetic used in cryptography and computer science. Students encounter these ideas when simplifying fractions, finding common denominators, solving equations, and later in coding and digital security systems that protect online information.