Factors
Which of the following are FACTORS of the number 16?
A) 2
B) 4
C) 12
D) 8
A) 2 (2 x 8 = 16)
B) 4 (4 x 4 = 16)
D) 8 (8 x 2 = 16)
Which of the following are MULTIPLES of 4?
A) 2
B) 12
C) 21
D) 16
B) 12
D) 16
4, 8, 12, 16, 20
Is the number 9, PRIME or COMPOSITE?
Composite
1 x 9
3 x 3
List the first 4 multiples of 8.
8, 16, 24, 32
Which of the following are FACTORS of 24?
A) 8
B) 14
C) 5
D) 6
A) 8 (8 x 3=24)
D) 6 (6 x 4=24)
Which of the following are MULTIPLES of 7?
A) 1
B) 16
C) 21
D) 63
B) 16
D) 63
7, 14, 21, 28, 35, 42, 49, 56, 63, 70
Is the number 17, PRIME or COMPOSITE?
Prime
1 x 17
List all of the factors of 24.
1, 2, 3, 4, 6, 8, 12, 24
1 x 24 = 24
2 x 12 = 24
3 x 8 = 24
4 x 6 = 24
Which of the following ARE NOT factors of 26?
A) 13
B) 8
C) 2
D) 6
B) 8
D) 6
13 x 2 = 26
Which of the following are MULTIPLES of 8?
A) 4
B) 24
C) 48
D) 90
C) 48
8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96
Is the number 35, PRIME or COMPOSITE?
Composite
1 x 35
5 x 7
List the first 6 multiples of 6.
6, 12, 18, 24, 30, 36
Which of the following are FACTORS of 48?
A) 4
B) 6
C) 12
D) 8
4 x 12 = 48
6 x 8 = 48
Which of the following are MULTIPLES of 6?
A) 3
B) 61
C) 24
D) 42
C) 24
D) 42
6, 12, 18, 24, 30, 36, 42, 48, 54, 60
Is the number 41, PRIME or COMPOSITE?
Prime
1 x 41
What is the least common multiple of 4 and 6?
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40
Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60
Common multiples = 12, 24, 36
LEAST COMMON MULTIPLE = 12
Which of the following lists ALL of the factors of 50?
A) 1, 2, 5, 50
B) 1, 2, 5, 10, 25, 50
C) 2, 5, 10, 25
D) 1, 2, 5, 10, 25
B) 1, 2, 5, 10, 25, 50
1 x 50 = 50
2 x 25 = 50
5 x 10 = 50
Which of the following are MULTIPLES of 9?
A) 36
B) 81
C) 72
D) 54
All of them are multiples of 9
9, 18, 27, 36, 45, 54, 63, 72, 81, 90
Is the number 59, PRIME or COMPOSITE?
Composite
1 x 59
Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24
Factors of 36: 1, 2, 3, 4, 6, 8, 12, 18, 36
Common Factors: 1, 2, 3, 4, 6, 8, 12
GREATEST COMMON FACTOR: 12