Factors
Multiples
Both
Prime/Composite
facts
100
Write the factors of 20
1,2,4,5,10,20
100
Write two multiples of 3 that have a factor of 7. Use equations to explain.
21 and 42
100
1.Courtney has 36 photos to arrange on a gallery wall.
A. How many arrays can Courtney make with the 36 photos? List all the possible arrays.
1 x 36 36 x 1
2 x 18 18 x 2
3 x 12 12 x 3
4 x 9 9 x 4
6 x 6
100
Is 36 prime or composite? Explain.
Composite
It has more than one factor pair.
100
2 x 18 =
36
200
True or false
3 is a factor of 27.
true
200
True or false
10, 20, 30, 45, 55 are multiples of 5.
true
200
B. How many factors are there for 36?Write them. What do you notice about the number of factors of 36 and the number of arrays Courtney can make with the photos?
9 factors
1,2,3,4,6,9,12,18,36
200
Determine if each number is prime or composite. Then write all the factors for each number.
19
33
19 prime
1 x 19
33 composite
1 x 33 3 x 11
200
True or false, all even numbers are composite.
False,
2 is prime
300
12.Write the factors of 30 that are also prime numbers.
2,3,5
300
What is the next multiple of 8?
8, 16 , 24,____
32
300
5.Select all equations that have a dividend that is a multiple of 4 and a quotient that is a factor of 18.
is a factor of 18.
Topic 7Assessment Practice
2
8 / 4 = 2
48 /8 =6
300
Is 37 prime or composite?
prime
300
The first common multiple of 5 and 15 is 30?
True
5, 10, 15, 20, 25, 30
15, 30
400
Which lists all the factors of 25 that arealso prime?
𝖠 1, 25
𝖡 5
𝖢 1, 10, 25
𝖣 5, 25
B
400
Carter lives on a street where all the house numbers are multiples of 6. Name two possible house numbers between70 and 80. Explain.
72 and 78
400
6.Write 3 multiples and 3 factors for 24.
1 x 24
2 x 12
3 x 8
4 x 6
24, 48, 72
400
13 . Javier says all odd numbers greater than 2 and less than 20 are prime. Find an odd number greater than 2 and less than 20 that is NOT prime. Explain why the number is not prime.
9
because it has more than 2 factors.
400
How many factors does 49 have?
3
1, 7, 49
500
8.Select all the true statements.
33 has more than two factors.
All of the factors of 34 are even numbers.
35 has exactly two factors.
3 is a factor of 36.
37 is a prime number.
38 is a composite number
33 has more than two factors.
3 is a factor of 36.
37 is a prime number.
38 is a composite number
500
9.Martika says factors and multiples are related. Use the equation to describe the relationship between factors and multiples. 6 x 7 = 42
6 and 7 are factors of 42
42 is a multiple of 6 and 7.
500
2.Determine whether the numbers in each list are factors or multiples of 16.
500
3.Which statement is true?
𝖠The only factors of 3 are 3 and 1; therefore, 3 is prime.
𝖡The only factors of 4 are 4 and 1; therefore, 4 is prime.
𝖢The only factors of 5 are 5 and 1 ; therefore, 5 is composite.
𝖣The only factors of 8 are 8 and 1; therefore, 8 is composite
A
500
10,505 is a prime or composite number?
How do you know?
composite
It ends with a 5, so it's a multiple of 5.