### We found 760 reviewed resources for prime numbers

Lesson Planet

#### Prime Numbers and Prime Factorization

Clarify prime numbers, composite numbers, and prime factorization with this worksheet. After looking over definitions, working through prime numbers, and making composite numbers, learners are introduced to prime factorization and the...

Lesson Planet

#### Prime Numbers: Eratosthenes' Sieve

By offering a step-by-step explanation of how to identify prime numbers, this presentation would be a terrific way to give learners a visual example of prime numbers. This is a simple, and easy way, for students to understand the "why"...

Lesson Planet

#### Finding Prime

Fifth and sixth graders explore prime numbers. They work with a partner to build rectangular arrays using twelve tiles. Factor pairs are noted and recorded on graph paper. Pupils construct rectangular arrays with a prime number and...

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#### Prime Factorization

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,...

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#### Numbers in a Multiplication Table

Identifying patterns is a crucial skill for all mathematicians, young and old. Explore the multiplication table with your class, using patterns and symmetry to teach about square numbers, prime numbers, and the commutative and identity...

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#### Prime Time

Fourth graders define prime numbers and examine which numbers are prime numbers. They access prior knowledge to show multiples in an array. Pupils play a game to determine which numbers are prime numbers.

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#### Prime and Composite Numbers

Create an understanding of prime numbers with the class after watching a video that examines different numbers and recognizes prime numbers as being those that do not have other factors than one and itself. The narrator then identifies...

Lesson Planet

#### Study Jams! Prime Factorization

Deepen the number sense of young mathematicians by exploring the process of prime factorization. Follow along with this step-by-step presentation that explains how factor trees are used to break a composite number down into its prime...

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#### Prime Numbers Song

Prime numbers are very special numbers. This clip defines what a prime number is and then provides a song to help students remember what they are. This could be a very helpful teaching strategy for kinesthetic learners. Music builds memory.

Lesson Planet

#### What is a Prime Number?

Review the characteristics of prime numbers. The narrator begins by defining factors and then goes on to explore the definition of prime numbers. This is a quick and easy way to review prime numbers.

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#### Factors of Numbers from 1 to 30

Finding factors is an integral skill on the road to fractions and algebra. Scholars write down a factor list for nine numbers up to 30. Next, they examine provided lists and circle the numbers that are factors of eight more numbers, also...

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#### Challenge: Prime Numbers

In this exploring prime numbers worksheets, learners use the definition of prime numbers to solve 4 problems, then list prime and composite numbers from 2-18.

Lesson Planet

#### HCF, LCM, and Product of Primes

Give the class a prime example of using prime numbers. After reviewing prime factorization of numbers with the video, pupils use their knowledge to determine greatest common factors and least common multiples in the worksheet. The...

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#### Prime Composite Worksheet

Children determine if the 45 numbers listed are prime numbers or composite numbers. They check off their answers. A very good resource!

Lesson Planet

#### Prime Numbers

Remembering which numbers are prime can be a snap if you have a graphic to help you out. As this printable 8x11 image will tell you, a prime is a number which can only be divided by one and itself. Number 1-100 are enclosed in pretty...

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#### Prime Factorization Mobile

Learners examine and discuss prime numbers, composite numbers, and prime factorization. They develop and create a factor tree mobile using exponents.

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#### Time for Prime

Explore prime numbers. Learners use an interactive 100's chart to identify prime numbers, discuss a glossary of terms, use cards to list multiples of 2,3,4,5, and play a bingo game.

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#### Factors of Numbers from 31 to 65

Finding factors is an integral aspect of multiplication. Although there are two examples here, they don't illustrate the process so you will still need to model this a few times for scholars. First, mathematicians list the factors for...

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#### Babylonian Mathematics I

Learners examine a Babylonian clay tablet and the mathematics found on it as a catalyst to investigate a variety of mathematical ideas. They work with prime numbers, classify numbers as whole, integer, rational, or irrational and use...

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#### Study Jams! Prime & Composite Numbers

Prime or composite, that is the question. Teach your class how to find the answer with this step-by-step presentation that defines and provides examples of each type of number. When addressing larger numbers, divisibility rules are...

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#### Factor Samurai

Master composite and prime numbers with this fast-moving game. Using your sword, slice those composite numbers and watch them break up into factors. Slice again if those factors are composite. However, watch out for prime numbers,...

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#### Factors With Prime and Composite Numbers (1 of 2)

Math monsters examine nine numbers, factor them, and then determine if they are composite or prime. You can print this worksheet off of the website, but it does not fit neatly onto one page. Consider projecting it on your class screen...

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#### Prime Factors #27

In this recognizing prime numbers and factors instructional activity, students read one-digit and two-digit numerals and list their prime factors. Students solve 20 problems.

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#### Prime Numbers Sieve

A very quick look at a multiplication table and how to eliminate numbers according to multiples of 2,3, 5, and 7. After eliminating these multiples, the numbers you are left with are prime.