Upcoming SlideShare
×
Like this presentation? Why not share!

Like this? Share it with your network

Share

# Multiples and Factors

• 703 views

• Comment goes here.
Are you sure you want to
Be the first to comment
Be the first to like this

Total Views
703
On Slideshare
702
From Embeds
1
Number of Embeds
1

Shares
24
0
Likes
0

### Embeds1

 http://lms.twb.edu.in 1

### Report content

No notes for slide

### Transcript

• 1. Multiples and Factors
• 2. Multiples
A multiple is formed by multiplying a given number by the counting numbers.
The counting numbers are 1, 2, 3, 4, 5, 6, etc.
• 3. Example: List the multiples of 2:
2x 0 = 0
2x 1 = 2
2x 2 =4
2x 3= 6
2x 4= 8
2x 5 = 10
2 x 6= 12
2 x 7 = 14
2 x 8 = 16
2x 9 = 18
2x 10 = 20
2 x 11 = 22
2 x 12 = 24
So, the multiples of 4 are 2,4,6,8,10 etc.
Counting Numbers
• 4. What are the first five multiples of 13?
13 x 1 =13
13 x 2 = 26
13 x 3 = 39
13 x 4 = 52
13 x 5 = 65
13, 26, 39, 52, 65
• 5. Find the Missing Multiples
24
30
6, 12, 18, ____, ____
___, 6, 9, 12, ____, ____, 21
___, 24, 36, 48, 60, ____
15
18
3
72
12
• 6. Factors
Factors are the numbers you multiply together to get a product.
For example, the product 24 has several factors.
24 = 1 x 24
24 = 2 x 12
24 = 3 x 8
24 = 4 x 6
SO, the factors are 1, 2, 3, 4, 6, 8, 12, 24
• 7. Finding Factors
Try 2, 3, 4, etc.
When you repeat your factors, cross out the repeat - you’re done at this point.
If you get doubles (such as 4 x 4), then you’re done. Repeats or doubles let you know you’re done.
• 8. What are the factors of 16?
1 x 16
2 x 8
3 x ??
3 is not a factor, so cross it out
4 x 4
doubles = done
The factors of 16 are 1,2,4,8,16
• 9. What are the factors of 18?
1 x 18
The factors are 1,2,3,6,9,18
2 x 9
3 x 6
Repeat! Cross it out! We’re done!
4 x ??
5 x ??
6 x 3
• 10. What are the factors of 7?
The only factors of 7 are 1,7
1 x 7
2 x ??
3 x ??
4 x ??
This works, but it is a repeat. We are done.
5 x ??
6 x ??
7 x 1
• 11. The End!