"Prime Numbers and Composite Numbers" Factors and Multiples PPT Courseware 4

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"Prime Numbers and Composite Numbers" Factors and Multiples PPT Courseware 4

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(1) A number has no other factors except ( ) and its ( ). This number is called a ( ) number.

(2) In addition to ( ) and its ( ), a number has other factors. This number is called a ( ) number.

(3) ( ) is not a prime number, nor is it a composite number.

(4) The integer ending with ( ) is a multiple of 2: The number ending with ( ) is a multiple of 5, and the number ( ) is a multiple of 3.

(5) The smallest prime number is ( ), the smallest composite number is ( ), the smallest even number is ( ), and the smallest odd number is ( ).

(6) The method to determine whether a number is prime or composite is based on ( ).

(7) A composite number has at least ( ) divisors.

judge

⑴A natural number is either an odd number or an even number. ( )

⑵A natural number is either a prime number or a composite number. ( )

⑶ Prime numbers are all odd numbers. ( )

⑷The sums are all even numbers. ( )

⑸ A prime number has two divisors and a composite number has three divisors. ( )

⑹All multiples of 3 are composite numbers. ( )

⑺Among the natural numbers, there are infinitely many prime numbers, and there is no largest prime number. ( )

Let’s see: 6=2×3 28=2×2×7

Among them: What are the numbers 2, 3, and 7 themselves?

At the same time, 2, 3, and 7 are all composite numbers. What number?

summary:

From the above example, we can see that each composite number can be written as the multiplication of several prime numbers, where each prime number is a factor of the composite number and is called a prime factor of the composite number.

Expressing a composite number by multiplying its prime factors is called decomposing prime factors

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For more information about the PPT courseware "Prime Numbers and Composite Numbers Factors and Multiples", please click the Prime Numbers and Composite Numbers PPT Factors and Multiples PPT tab.

"Prime Numbers and Composite Numbers" Factors and Multiples PPT:

"Prime Numbers and Composite Numbers" Factors and Multiples PPT Part One: Learning Objectives 1. Understand the concepts of prime numbers and composite numbers, and know the connections and differences between them. 2. Be able to correctly determine whether a number is prime or composite. 3. Know the prime numbers within 100 and be familiar with the prime numbers within 20..

"Prime Numbers and Composite Numbers" Factors and Multiples PPT Courseware 3:

"Prime Numbers and Composite Numbers" Factors and Multiples PPT Courseware 3 For each of the following numbers, which ones are prime numbers and which ones are composite numbers. 17 22 29 35 37 87 Prime numbers within 100 Table 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 5...

"Prime Numbers and Composite Numbers" Factors and Multiples PPT Courseware 2:

"Primes and Composite Numbers" Factors and Multiples PPT Courseware 2 In the content "Multiples and Factors", what numbers are we studying? Non-zero natural numbers. What are even numbers and odd numbers? How are they divided? A number is divided according to whether it is a multiple of 2, such as...

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Update Time: 2024-09-30

This template belongs to Mathematics courseware Western Normal University Edition Fifth Grade Mathematics Volume 1 industry PPT template

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