WorksheetsPrime Numbers, Multiples and Factors
Total questions: 30
Worksheet time: 44mins
What are the first five multiples of 6?
6, 12, 16, 24, 30
6, 12, 18, 24, 30
6, 12, 18, 30, 36
6, 12, 24, 30, 36
Which of the following are factor pairs for 36?
2 x 18
3 x 13
4 x 9
6 x 6
8 x 4
Which of the following are factors for both 24 and 36?
2
3
6
9
12
A prime number is _____.
a number that has only one factor.
a number that has at least two factors.
a number that has more than two factors.
a number that has only two factors.
(1 and itself)
Which choice lists all the factors for the number 24?
2, 3, 4, 6, 8, 12, 24
2, 3, 4, 6, 8, 12, 24, 36
1, 2, 3, 4, 6, 8, 12, 24
1, 2, 4, 5, 6, 8, 12 ,24
Numbers that can be multiplied together to make a product are called _____.
multiples
sum
factors
facts
Which of the following is NOT true?
The number 5 is prime.
The number 16 is a multiple of 2.
The number 18 is a factor of 3.
The number 8 is composite.
Which of these numbers are factors of 35?
3
5
7
9
11
Which of these numbers is a factor of 12?
3
5
7
9
11
Define factor
the numbers being multiplied together
Numbers that are even
numbers that are odd
numbers that are really big
Define multiple
numbers that are being multiplied together
odd numbers
the numbers we say when counting by a whole number
even numbers
Which are factors of 20?
2,10,5,4,1,20
3,5,7,9
40,80,100
15,25,35
2 is the only even prime number.
True
False
39 is a _________________ number.
prime
composite
What is the PRIME factorization of 24?
23 x 3
2 x 2 x 3
6 x 4
32 x 2 x 2
Select all of the square numbers.
9
16
24
100
(1 and itself)
Given that 3 and 7 are factors of a number Q. Which of the following is the value of Q?
12
24
36
42
What is the lowest common multiple (LCM) of 6, 15 and 18?
60
70
80
90
Find the lowest common multiple (LCM) of 16, 20 and 40.
(a)
Which of the following numbers is the greatest common factor (GCF) of 60 and 90
5
15
30
45
Find the greatest common factor (GCF) of 25, 30 and 45.
(a)
Which is not a prime number?
5
7
9
11
True/False The number 1 is neither prime nor composite.
True
False
