Square Numbers
9
32
Exercise 3.3
Number 1
Page 41
p
15
1 x 15
3 x 5
A number with only two factors (or more) is called
A composite number
2,3,4,5,6
Prime, Prime, Composite, Prime, Composite
72
49
4 x 6 = 24 + 1
=25 = 52
Are you able to do a factor bug for the number 25
1,5,25
Does it have a sting in its tail?
Why?
The Prime Number 17 has two factors
What are they
1, 17
46 64 14 4 24 100 60 66 18 81 9 90
Which are square numbers?
64 = 8x8
4 = 2x2
100 = 10x10
81 = 9x9
9 = 3x3
1,4,9,16,?
25
5 x 7 = 35 + 1
= 36 = 6 x 6
Can you factor the number 1
Yes or No
1 is a unit and not a prime number
18
Is this a Composite Number?
How do you know?
1,2,3,6,9,18
Are Factors of 18
First term is 7, term to term rule is add 6
Write down the first six terms of the sequence
13, 19, 25, 31, 37, 43
144
122
A prime number has exactly two factors
True or False
True
Circle all factors of 45
1, 2, 3, 5, 9, 15, 45
1, 3, 5, 9, 15, 45
What will be the sting in the Factor Bug's Tail for the number 81?
9
First term is 2, term to term rule is add 7
Write the first six terms of the sequence
9, 16, 23, 30, 37, 44
112
121
11, 21, 31, 41, 51, 61
Which of these are not prime numbers?
21, 51
Using a factor rainbow, are you able to find the factors of Number 8?
1, 2, 4, 8
60
Can you name the factors of this number?
1 x 60 2 x 30
3 x 20 4 x 15
5 x 12 6 x 10
Look at the pattern on page 42 of your Maths Learner Book
What are the next two numbers in the sequence?
1, 2, 4, 8, 16
Do you notice a pattern in these numbers?