Missing Primes

Worksheet Description

This worksheet is a prime factorization exercise designed for students to practice identifying the prime factors of given composite numbers. Each of the ten items on the worksheet presents a composite number with a partially completed set of its prime factors. The students’ task is to fill in the blank boxes with the correct prime numbers to complete the factorization. The worksheet includes a variety of composite numbers to ensure that students get practice with different types of factorizations.

The worksheet teaches students how to determine the prime factors of a number, a key skill in number theory. By providing partially completed factorizations, it prompts students to recall and apply their knowledge of prime numbers and multiplication. This exercise helps reinforce the concept that every composite number can be expressed as a product of prime numbers in a unique way. Mastering prime factorization is important for understanding greater mathematical concepts such as greatest common divisors, least common multiples, and simplifying algebraic fractions.