Prime Factoization Teacher Resources

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Students explore the concept of factoring numbers. In this factoring lesson, kids use factor trees to find the factors of different numbers. Students also discover what a prime number is and the term prime factorization. 
Sixth graders explore factors and fractions. In this factors and functions lesson, 6th graders explore prime numbers, prime factorization, and divisibility rules so that are able to work with fractions. Students also practice solving problems that their instructors model.
Students explore the concept of prime factorization. In this prime factorization instructional activity, students participate in an activity where they find the prime factorization and greatest common factor of a number derived from their name. Students play the factor game using a computer where they must find factors of a number.
Young scholars identify numbers as prime or composite and complete prime factorization of composite numbers.
Older elementary students will appreciate how clearly Sal explains how to find the prime factorization of 75. He shows the complete process, taking note of numbers that are, and are not primes, and why.
Factoring is an important math skill, and it's often quite confusing for youngsters. This presentation does a good job of showing the basic skills and vocabulary needed to begin to understand this important process. Prime numbers, composite numbers, and prime factorization are all covered, and there's an ample supply of practice problems for learners to try their hands at. Very good!
In this prime factorization worksheet, students prime factorize ten given numbers. The numbers range from 6 to 25.
In this prime factorization activity, students use skills to find the prime factorization of the given numbers. An answer sheet is included.
In this prime factorization instructional activity, learners find the prime factorization of numbers by using a factor tree. They compare fractions and identify equivalent fractions, and find the greatest common factor, order numbers, and convert fractions to decimals. This two-page instructional activity contains 18 problems. Answers are provided on the last page.
In this prime factorization worksheet, students solve a set of 6 problems related to prime factorization, including determining whether numbers are prime or composite and determining factors.
In this prime factors worksheet, students solve 20 problems in which the prime factors of a one or two digit number are listed. Students tell if the number is prime. There is no instruction on how to find prime factors.
In this prime factorization worksheet, students list the prime factors of the 2 digit numbers given to them. Students complete 9 problems.
In this prime factorization worksheet, students prime factorize the nine given numbers on a line. Each number goes to the hundreds place.
Sal explains that the greatest common factor of any number is the largest number divisible into both monomials and not necessarily the number with greatest value. He breaks down two numbers into their prime factors as a product of its primes then identifies the GCF of greatest common factor.
Equipped with several examples from the attached module and from standardized tests, Sal takes viewers through the process of prime factorization and divisibility. He demonstrates each skill several times with many different numbers, allowing them to see each step in his work.
Sal compares two fractions containing uncommon denominators. He analyzes both fractions using prime factorization. Note: This video could be confusing for struggling learners or those new to the concept. It would be best used for independent students with a strong number sense.
In this finding factors worksheet, students practice finding all the factors of 24 in twenty word equations and then find the prime factorization in ten equations.
Ninth graders factor equations and find prime numbers. In this algebra lesson, 9th graders find the factors and prime factors of a number using multiples and relatively prime numbers.
Students simplify fractions using the TI-73 calculator. In this fractions lesson, students manually simplify fractions in their calculators by choosing the factor by which to reduce them. Using the given fractions, students list the prime factors, GCF, and simplified answer.
Fifth graders use prime factoration and the use of prime and composite numbers.

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Prime Factoization