Factors
What are the Factors of 12?
1,2,3,4,6,12
What are the factor pairs of 10?
1 and 10, 2 and 5
Is 7 prime or composite?
PRIME
What are the first 3 multiples of 5?
5,10,15
What is a common multiple of 2 and 3?
6
If a number is even, one of its factors is always?
2
If one factor of 24 is 3 what is the other factor?
8
What is the definition of a prime number?
A number whose only factors are 1 and itself.
If you multiply 4 by 3, what is the multiple you get?
12
What is the least common multiple of 4 and 5?
20
What is the smallest factor of any number
1
What is the factor pair of 36 that includes 6?
6 and 6
Give an example of a composite number.
4,6,8,10, etc.
What is the smallest multiple of 6 that is greater than 10?
12
How can you find common multiples of two numbers?
list the multiples of each number separately, then identify the numbers that appear in both lists
Is 25 a factor of 100?
yes
Are 2 and 5 a factor pair of 10?
yes
Is one a prime number? Why or Why not?
No, because by definition a prime number has to have 2 factors. 1 only has one factor, of 1.
List the multiples of 2 up to 20
2,4,6,8,10,12,14,16,18,20
What are the first 2 common multiples of 3 and 4?
12 and 24
Find all of the factors of 30
1,2,3,5,6,10,15,30
List all of the factor pairs for 28
1,2,4,7,14,28
What are the first 5 prime numbers?
2,3,5,7,11
What is the largest multiple of 7 that is less than 50?
49
What is the least common multiple of 6 and 8?
24