Prime/Composite
This number is prime:
A. 20
B. 15
C. 10
D. 5
5
What is the lowest common multiple of the following numbers? 5 and 8
a) 20
b) 5
c) 40
d) 30
LCM= 40
What is the greatest common factor of 20 and 8?
a) 2
b) 12
c) 4
d) 10
GCF=4
This number is composite:
A. 4
B. 5
C. 11
D. 17
4
What is the lowest common multiple of the following numbers? 3 and 7
a) 21
b) 12
c) 3
d) 9
LCM = 21
What is the greatest common factor for 12 and 56?
a) 24
b) 32
c) 6
d) 4
GCF = 4
The answer to the following is a prime number.
A. 3 x 4
B. 15 -5
C. 2 x 2
D. 9 divided by 3
9 divided by 3
What is the lowest common multiple of the following numbers? 12 and 18
a) 6
b) 8
c) 36
d) 14
36
What is the greatest common factor of 32 and 64?
a) 22
b) 28
c) 48
d) 32
GCF = 32
The answer to the following is a composite number.
A. 3 x 1
B. 2 x 0
C. 7 + 4
D. 8 + 16
8 + 16
Determine the LCM between each group of numbers 7 and 9.
a) 21
b) 53
c) 18
d) 63
63
What is the greatest common factor of 64 and 240?
a) 16
b) 18
c) 28
d) 46
GCF = 16
This is how you write 36 as the product of its prime factors.
A. 6 x 6
B. 3 x 12
C. 2 x 2 x 3 x 3
D. 4 x 9
2 x 2 x 3 x 3
Determine the LCM between each group of numbers 4, 6 and 9
a) 3
b) 12
c) 36
d) 23
36
What is the greatest common factor for 60, 120 and 90?
a) 9
b) 60
c) 30
d) 3
GCF= 30