Greatest Common Factor
What is the GCF of 3 and 6?
3
What is the least common multiple of 2 and 4?
4
Is 3 prime or composite... write how you know!
3 is prime because its only factors are 1 and itself.
What are the factors of 6?
1, 2, 3, and 6
List the first 5 multiples of 2
2, 4, 6, 8 , 10
What is the GCF of 10 and 5?
The GCF is 5
What is the LCM of 4 and 10?
20
The factors of a number are 1, 2, 4, and 8. What number are these factors of? Is this number prime or composite?
These are the factors of 8. 8 is composite.
List the factors of 20.
1, 2, 4,5, 10, 20
What is the seventh multiple of 5?
35
What is the GCF of 13 and 7?
1
What is the LCM of 3 and 5?
15
Is 17 prime or composite?
17 is prime, its only factors are 1 and itself.
What are the factors of 18?
1, 2, 3, 6, 9, 18
What is the eleventh multiple of 9?
99
What is the GCF of 36 and 12?
12
What is the LCM of 10 and 6?
30
Is 20 prime or composite?
20 is composite because it has more factors than just and itself.
List the factors of 22
1, 2, 11, 22
What is the sixth multiple of 12?
72
What is the GCF of 40 and 50?
10
What is the LCM of 5 and 11?
55
List all the factors of 50
1, 2, 5, 10, 25, 50
What is the thirteenth multiple of 7?