Factoring numbers through multiplication using primes is an important concept for students to understand. Those in grades 3–5 should be able to find equivalent representations of the same number by de composing and composing numbers (NCTM 2000). One aspect of this essential skill is prime decomposition, which relates to such mathematical topics as simplifying, divisibility, square roots, and fractions. Prime numbers are crucial building blocks for understanding numbers and their multiplicative relationships (Zazkis and Liljedahl 2004).