Multiples
What is the 12th Multiple of 5?
A) 50
B) 60
C) 120
D) 70
B) 60
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60
48 is a common multiple of __________.
A) 3 and 9
B) 4 and 7
C) 5 and 12
D) 3 and 12
D) 3 and 12
12 x 4 = 48
3 x 16 = 48
_____ is not a factor of 50.
A) 2
B) 10
C) 4
D) 5
C) 4
2 x 25 = 50
10 x 5 = 50
5 x 10 = 50
_____ is a common factor of 12 and 18
A) 6
B) 4
C) 12
D) 9
A) 6
6 x 2 = 12
6 x 3 = 18
Which of these numbers is a prime number?
A) 22
B) 39
C) 41
D) 34
C) 41
only 1 x 41 = 41
Which of the following are multiples of 8?
7 16 22 28 32 40 44
16, 32, 40
8 x 2 = 16
8 x 4 = 32
8 x 5 = 40
What are 3 common multiples of 2 and 6?
Answers vary.
6, 12, 18, 24, 30, 36, 42, 48...
Which of the following are factors of 36?
2 5 6 8 9 10 12
2, 6, 9, 12
2 x 18 = 36
6 x 6 = 36
9 x 4 = 36
12 x 3 = 36
Which of the following numbers have 4 as a factor?
2 8 10 16 40
8, 16, 40
4 x 2 = 8
4 x 4 = 16
4 x 10 = 40
Which of the following numbers are prime numbers?
30 17 5 27 14 11
17, 5, 11
List the first five multiples of 6.
6, 12, 18, 24, 30
List the first 3 common multiples of 2 and 4
4, 12, 16
2, 4, 6, 8, 10, 12, 14, 16
4, 8, 12, 16
List all the factors of 24.
1, 2, 3, 4, 6, 8, 12, 24
What are all the common factors of 12 and 15?
1 and 3
1, 2, 3, 4, 6, 12
1, 3, 5, 15
List all the composite numbers from 1 to 20,
4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20
Find the sum of the first four multiples of 7.
70
7 + 14 + 21 + 28 = 70
List the first two common multiples of 2, 3, and 5.
30 and 60
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60
3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60
List all the factors of 42.
1, 2, 3, 6, 7, 14, 21, 42
What is the greatest common factor of 18 and 36?
18
1, 2, 3, 6, 9, 18
1, 2, 3, 4, 6, 8, 18, 36
List all the prime numbers from 2 to 30.
2, 3, 5, 7, 11, 13, 17, 19, 23, 29