Factors
Factors are the numbers
you multiply together
to get another number
2
Example
1
Factor
A
There
27
can
be
12
many
2
So the factors
in
the equations below
3
4 5 20
6 12
are
21
7
factors for any number
For example the number 12
1 12
can be made with
3 4
12
1,2 314,6 and 12
Let's do another together What factors
number 15
the
I
You
I
x
15
try
15
of
Factor
You try highlight the factors
3 9
are factors
da
12
12
6
3 5
15
in
are
1,3 5,15
of 15
are
factors
24
24
2x
24
8 24
x
24
of finding the factors is
The best
bystarting
way
from 1 and checking each number after
Try Question 192 page 119 of thetext Book
Multiples
M
can yousee the word multiples is nearly the same as multiply
A multiple of a number
For example
is found
by multiplying the
numberby 1 2,34,5
the multiples of 5 are
5 1
5
5
10
15
5 3
5 4 20 and so on
So themultiples of Sare 5,10 15,20
2
Let's
try finding
the multiples of 7
7 1
Tx
7
x
7 4
i The multiples of 7 are
You
try finding
7 14,21 28
the multiples of 10 and 3
10
3
10 1
3 1
10 2
10 3
I0 4
x
y
x
10 5
O The multiples
x
The multiples of 3 are
of 10 are
i
3
i
Try questions
3,4
and 5
Then complete questions 79 b c 8 10012
Extra Work Q6 09
and so
on