Factor Finder
List all the factors of 12.
1, 2, 3, 4, 6, 12
Name one factor pair of 20.
1 × 20, 2 × 10, or 4 × 5
Write the first 5 multiples of 4.
4, 8, 12, 16, 20
Is 5 a factor of 25?
Yes, 5 x 5 = 25.
Which number is a factor of 18: 4, 6, or 8?
6
List all the factors of 24.
1, 2, 3, 4, 6, 8, 12, 24
Find all the factor pairs of 36.
1 × 36, 2 × 18, 3 × 12, 4 × 9, and 6 × 6
Write the first 6 multiples of 7.
7, 14, 21, 28, 35, 42
Is 36 a multiple of 9? Explain.
Yes, 9 x 4 = 36.
Find the missing factor: ___ × 8 = 56.
7
Which number has more factors: 18 or 19?
18.
Its factors are 1, 2, 3, 6, 9, and 18.
The factors of 19 are only 1 and 19
A number has the factor pairs 1 × 24, 2 × 12, 3 × 8, and 4 × 6. What is the number?
24
What are the first 3 common multiples of 3 and 4?
12, 24, 36
Complete the relationship: 8 is a ______ of 32, and 32 is a ______ of 8.
8 is a factor of 32, and 32 is a multiple of 8.
I am a number less than 30. Both 4 and 6 are factors of me. What numbers could I be?
12 or 24
Find all the factors of 48.
1, 2, 3, 4, 6, 8, 12, 16, 24, 48
A number has these factor pairs: 1 × 30, 2 × 15, 3 × 10, and 5 × 6. How many factors does the number have?
8 factors.
What is the smallest common multiple of 6 and 8?
24
True or False: Every multiple of 8 is also a multiple of 4. Explain.
True. Since 8 = 4 × 2, any number that is a multiple of 8 will also be divisible by 4.
Mia says, “Since 6 is a factor of 42, then 42 is a multiple of 6.” Is Mia correct? Explain.
Yes. 6 × 7 = 42, so 6 is a factor of 42 and 42 is a multiple of 6.
I am between 40 and 50. My factors include 1, 2, 3, 4, 6, 8, and 12. What number am I?
48
A rectangular array has 36 objects. List every possible whole-number row × column arrangement without repeating reversed pairs.
1 × 36, 2 × 18, 3 × 12, 4 × 9, and 6 × 6.
A teacher has 24 pencils and 36 erasers. She wants to make the greatest possible number of identical groups with no supplies left over. How many groups can she make?
12 groups. Each group will have 2 pencils and 3 erasers.
Jay says, “If a number is a multiple of 6, it must also be a multiple of 3.” Is Jay always, sometimes, or never correct? Explain.
Always correct. Since 6 is a multiple of 3, every multiple of 6 is also a multiple of 3.
I am less than 50. I am a multiple of both 6 and 8, and I have more than 6 factors. What number am I?
24. Its factors are 1, 2, 3, 4, 6, 8, 12, and 24.