Factors Greatest Common Factors Multiples Lowest Common
Multiple
Slide 3
MULTIPLES The word MULTIPLE looks a lot like MULTIPLY
Multiplying make things large, so Multiples are the large numbers
that are formed by multiplying the original by counting numbers.
Another to say it that a multiple is the product of factors! Ex.
Multiples of 6 6x2=12 so 12 is the next multiple Therefore, 6,12,18
are the first 3 multiples of 6 6x1=6 so 6 is the first multiple
6x3=18 so 18 is the next multiple
Slide 4
4 x 1 = 4 4 x 2 = 8 4 x 3 = 12 4 x 4 = 16 4 x 5 = 20 4 x 6 = 24
Counting Numbers So, the first six multiples of 4 are 4, 8, 12, 16,
20, 24, 28 EXAMPLE: LIST THE MULTIPLES OF 4: Write this example
down just as you see it.
Slide 5
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 WHAT ARE THE FIRST FIVE MULTIPLES OF 13? Write this
example down just as you see it.
Slide 6
LOWEST COMMON MULTIPLE Once you have the lists of a few
multiples for the two numbers You can pick the smallest or lowest
number that is in both (common) lists That number is the Lowest
Common Multiple for those two numbers Examples. 8: 8,16,24,32
12:12,24,36 16: 16,32,48,60 24: 24,48,72 24 is the LCM 48 is the
LCM Make sure you get the steps written down!!!
Slide 7
4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44 9: 9, 18, 27, 36,
45, 36 is the LCM of 4 and 9 FIND THE LCM OF 4 AND 9 Write this
example down just as you see it.
Slide 8
Well, thats all for today. If there is time left in the period,
practice in the math text book on page 103. Tomorrow we will pick
up with prime and composite numbers. Please study your notes from
today and your homework assignment is on Pearsonsuccessnet titled
Factors. Do your best as this is your very first practice math
grade!