WorksheetsFactors, Multiples and Prime Numbers
Total questions: 100
Worksheet time: 1hrs 27mins
Which of the following is a factor of 12? Select all that apply.
12
2
24
3
Select all of the multiples of 8.
2
8
32
4
Select all of the prime numbers.
3
9
29
2
Select all of the square numbers.
9
16
24
100
Select all of the composite numbers.
12
16
3
7
What are the factors of 15?
1, 2, 3, 5, 15
1, 3, 5, 15
1, 2, 3, 4, 5
1, 5, 10, 15
What are the factors of 24?
1, 2, 3, 4, 5, 6, 7, 8, 24
1, 3, 4, 6, 8, 10, 24
1, 2, 3, 4, 6, 8, 12, 24
1, 2, 4, 8, 12, 24
What are the first five multiples of 3?
6, 9, 15, 18, 21
3, 6, 9, 12, 18
3, 6, 9, 15, 18
3, 6, 9, 12, 15
Which one of the numbers below is prime numbers?
15
17
16
12
What are the first six multiples of 7?
14, 35, 21, 28, 42
7, 28, 42, 35, 63
7, 14, 28, 35, 42, 56
7, 14, 21, 28, 35, 42
Which number is neither a prime nor a composite number ?
1
3
5
7
(1 and itself)
TRUE or FALSE?
A FACTOR is greater than the number you are factoring
TRUE
FALSE
TRUE or FALSE?
A FACTOR is greater than the number you are factoring
TRUE
FALSE
Choose all the PRIME numbers
1
2
3
5
A COMPOSITE number has:-
Exactly 2 factors
Less than 2 factors
More than 2 factors
No factors
TRUE or FALSE?
A MULTIPLE is greater than the number you are multiplying
True
False
List the first (4) multiples of 8
1, 2, 4, 8
8, 16, 24, 32
Find ALL FACTORS of 24
1, 2, 12, 24
1, 2, 8, 24
1, 2, 3, 4, 5, 6, 8, 12, 24
1, 2, 3, 4, 6, 8, 12, 24
Which are factors of 20?
2,10,5,4,1,20
3,5,7,9
40,80,100
15,25,35
Which is a factor pair of 24?
2,12
3,5
7,6
8,5
what are factors of 42?
1,42,2,21,7,6
2,24
48,2
3,4,7,8
For any given number, which one of the following is most correct?
1 is always a factor
1 and the given number is always a factor
1 and the given number is always a multiple
None of the above
First, three multiples of 6 are .......
6, 12, 24
1, 6, 12
6, 12, 18
6, 18, 12
7 × 9 = 63. Here 63 is the …………… of 7 and 9.
(a)
9 is Prime number
False
True
All the factors of 36 are ...
1, 36
2, 3
2, 3, 4, 6, 9, 12, 18
1, 2, 3, 4, 6, 9, 12, 18
7 × 9 = 63. Here 7 and 9 are (a) of 63.
Prime numbers are always greater than 1
True
False
Common factors of 18 and 21 are
1, 2, 18, 21
1, 2, 3
1 and 3
1, 2, 3, 6, 9 and 7
56 is a multiple of 7, as it is divisible by 7.
False
True
Which of the following numbers is divisible by 3?
24357806
35769812
83479560
3336433
Which of the following numbers is divisible by 9?
8576901
96345210
67594310
none of these
Which of the following numbers is divisible by 4?
78653234
98765042
24689602
87941032
Which of the following numbers is divisible by 8?
96354142
37450176
57064214
none of these
Which of the following numbers is divisible by 6?
8790432
98671402
85492014
none of these
Which of the following numbers is divisible by 11?
3333333
1111111
22222222
all of these
Which of the following is a prime number?
117
171
179
none of these
Which of the following is a prime number?
323
361
263
All of these
Which of the following are co-primes?
39, 91
161, 192
385, 462
none of these
391289 when reduced to the lowest terms is
2311
3113
3117
2317
The greatest number which divides 134 and 167 leaving 2 as remainder in each case is
14
17
19
11
The smallest number which when diminished by 3 is divisible by 11, 28, 36 and 45, is
1257
1260
1263
none of these
The HCF of two co-primes is
(a) the smaller number
(b) the larger number
(c) 1
(d) none of these
If a and b are co-primes, then their LCM is
1
ba
ab
none of these
Select the odd ones:
35, 46, 97, 48, 67, 93, 86, 57, 68, 103
(a)
Select the even ones:
23, 75, 28, 57, 102, 134, 157, 2, 147, 174, 14, 89, 68.
(a)
An odd number plus an even number equals?
(a)
An odd number plus an odd number equals?
(a)
An even number plus an even number equals?
(a)
Is it odd or even?
219
Is it odd or even?
Even
Odd
Is it odd or even?
Is it odd or even?
Is it odd or even?
Is 20 + 26 =____ an odd or even number?
Odd
Even
Is 72- 40 =_____ an odd or even number?
Odd
Even
Which place value do you look at to determine if a number is odd or even?
tens place
ones place
hundreds place
thousands place
The product (multiply) of two even numbers is...
Even
Odd
The product (multiply) of two odd numbers is...
Even
Odd
The product (multiply) of one even number and one odd number is...
Even
Odd
TICK THE ODD NUMBER
21 122
11 123
45 156
34 148
TICK THE EVEN NUMBER
10 012
37 933
30 949
12 851
34 663
Odd
Even
39 000
Odd
Even
Which of these numbers is even?
54 436
98 773
11 311
53 785
54 456
Is it odd or even?
Even
Odd
65 219
Is it odd or even?
Even
Odd
Which of these numbers is even?
54 611
66 566
34 875
23 629
What number is 2020?
odd
even
What number is 1995
odd
even
