"Decomposing Prime Factors" Multiples and Factors PPT Courseware

Description

"Decomposing Prime Factors" Multiples and Factors PPT Courseware

teaching objectives

1. Experience the process of understanding prime factors, decomposing prime factors, and using different methods to decompose prime factors.

2. Understand the meaning of prime factors and decomposition of prime factors, and be able to decompose a composite number into prime factors.

3. In the learning activities of writing calculations and trying to decompose prime factors, gain successful experience and enhance your self-confidence in learning mathematics well.

Write 60 as a multiplication of several factors.

60＝2×30 60＝1×60

60＝4×15 60＝3×20

60＝6×10 60＝5×12

60＝3×4×5 60＝2×5×5

Think about how else you can write it?

The factors 2, 3, 2, and 5 are all prime numbers and are called prime factors of 60.

Representing a number in the form of multiplying prime numbers is called decomposing prime factors.

give it a try

Work in groups to verify the following conclusions.

Any composite number can be written as the multiplication of several prime factors.

practice

1. Decompose the following numbers into prime factors.

78 33 54 46

Prime factors of 2.20 Prime factors of 30

Both 20 and 30 have prime factors

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For more information about the PPT courseware "Multiples and Factors Decomposing Prime Factors", please click the Multiples and Factors ppt Decomposing Prime Factors ppt tag.

"Decomposing Prime Factors" Factors and Multiples PPT Courseware 2:

"Decomposing Prime Factors" Factors and Multiples PPT Courseware 2 Review 1. How many categories of natural numbers are divided according to the number of factors? Natural numbers are divided into three categories: prime numbers, composite numbers and 1 according to the number of factors. 2. What number is called a prime number? What number is a composite number? A number has nothing more than 1 and itself..

"Decomposing Prime Factors" Factors and Multiples PPT Courseware:

"Decomposing Prime Factors" PPT courseware on factors and multiples is in 2, 7, 12, 35, 4, 21, 13, 17. Among these numbers, the prime numbers are: 2, 7, 13, 17 and the composite numbers are: 12, 35, 4, 21 Thinking: Which of the following numbers can be written as the multiplication of several prime numbers? 7 9..

File Info

Update Time: 2024-09-08

This template belongs to Mathematics courseware Hebei Education Edition Fourth Grade Mathematics Volume 1 industry PPT template

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