Understanding factors and multiples
what are factors?
numbers you can multiply together to get another number
Identify the next pattern: 5,10,15,20. What’s comes next?
25
Is 17 a prime number?
yes, because it has no factors other than 1, 17
What is the GCF of 24 and 36?
12
Find the lcm of 10 and 15
30
What is a multiple?
The result of multiplying a number by an integer.
What’s is the next number in the sequence: 2,4,6,8
10
What’s is a composite number?
a composite number is a number that has more than two factors.
Find the gcf of 9 and 27
9
Find the lcm of 12 and 15
60
List the factors of 12
1,2,3,4,6,12
What’s is the rule for the sequence: 1,3,5,7?
add 2
Is 21 a prime number?
No, because it has factors of 1,3,7 and 21
Find the gcf of 15 and 25
5
Find the lcm of 6 and 8
24
List three multiples of 4
4,8, 12
(other answers- 16,20,24,28,32)
What’s is the next number in the sequence: 10,20,30,40..
50
what are three prime numbers between 10 and 20?
11,13,17
Find the gcf of 14 and 28
14
Whats the lcm of 5 and 6
30
True or false 5 is a factor of 20
true
What’s comes next in the sequence, 3,6,9,12,15?
18
Is the number 13 prime of composite?
prime, it only has two factors, 1 and 13
6
What’s is the lcm of 4 and 5
20