Display Title

Definition--Prime and Composite Properties--Prime Factor

Prime Factors

Prime Factors

Topic

Prime and Composite Numbers

Definition

Prime factors are the prime numbers that when multiplied together give a particular result.

Description

Prime factors play a crucial role in the study of prime and composite numbers. A prime factor is a factor that is a prime number, one of the building blocks of all numbers. For example, the prime factors of 12 are 2 and 3, because 2 • 2 • 3 = 12. Understanding prime factors helps in various mathematical processes such as simplifying fractions, finding the greatest common divisor (GCD), and the least common multiple (LCM).

Prime factorization is the process of breaking down a composite number into its prime factors. This is important because it reveals the fundamental structure of numbers and is used in number theory, cryptography, and other fields of mathematics. For instance, the number 30 can be expressed as the product of its prime factors: 2 • 3 • 5. This decomposition is unique to each number, which is known as the Fundamental Theorem of Arithmetic.

Recognizing and utilizing prime factors is essential in solving problems related to divisibility, simplifying algebraic expressions, and more. They are foundational to understanding the properties and behaviors of numbers in mathematics.

For a complete collection of terms related to primes and composites click on this link: Prime and Composites Collection.

Common Core Standards CCSS.MATH.CONTENT.4.OA.B.4
Grade Range 4 - 6
Curriculum Nodes Arithmetic
    • Numbers and Patterns
        • Prime and Composite Numbers
Copyright Year 2021
Keywords composite numbers, prime numbers, factors, definitions, glossary term