Kaitou Kid Legendary Thief
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That's because I tutor my siblings sometimes too XD And I am a teacher. Just not subject based
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LOLOLOLOLOLOLOLOL HI LIA!
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And what is that?
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<3333333333333 XD
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hmmm let me think...
Factorise these numbers COMPLETELY:
1)8
2)27
3)12
4)50
5)44
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\o/ so this is the first thing you need to get your Greatest Common Factor (GCF) and your Lowest Common Multiple (LCM)!!!!!!
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lol! Then its okay then
:P if you factorise 20 completely, you will get:
2 X 2 X 5
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Nooooooooooooooo!!!
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18000!!! <3
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Late gratz !
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You scare me.
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Thanks all! <3
@Moho: Sorry to scare you :V I know I have nearly double of yours :V
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Yes. That is what happens if you factorise 20.
But you haven't factorised it COMPLETELY yet.
So what happens if you factorise it completely? -
*gives all the soda in the world to Par-chan* XD Hi pipichan! XD
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Yep yep... so to factorise a number completely means you try to multiply to get that number with the smallest possible number.
So to factorise 8 you get 2 X 4 OR 1 X 8.
But to factorise COMPLETELY, you get 2 X 2 X 2.
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No I dont :P You can have all the sodas~ I wont be snatching them with you XD @Misaki: Goodnight!
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A factor is a divisor of a number.
A divisor is a number which can be divided with.
So
factors of 2 = 1,2
factors of 4 = 1,2,4
factors of 6 = 1,2,3,6
factors of 8 = 1,2,4,8
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2) 32 and 40
Factors:
32: 2 X 2 X 2 X 2 X 2
40: 2 X 2 X 2 X 5
similar factors = 2 X 2 X 2 = 8
GCF = 8
we can see that
32 = 8 X 2 X 2 (missing a 5)
40 = 8 X 5 (missing a 2 X 2)
So,
32 = 8 X 2 X 2 (x5 = 160)
40 = 8 X 5 (x2x2 = 160)
LCM = 160
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Now for the LCM.
16 and 24
we now know that their GCF is 8.
So,
16: 8 X 2
24: 8 X 3
Note that 16 is lacking of a three and 24 is lacking of a 2.
So, if
16: 8 X 2 (x3 = 48)
24: 8 X 3 (x2 = 48)
So the LCM is 48
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Factorise them completely:
16: 2 X 2 X 2 X 2
24: 2 X 2 X 2 X 3
Let me put them in a more obvious position
16: (2 X 2 X 2) X 2
24: (2 X 2 X 2) X 3
Note that the front are exactly the same factors.
So the gcf of this is 2 X 2 X 2 = 8.
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Number 3 is correct
Number 4 LCM is correct
Number 5 GCF is correct
Rest are wrong
Remember. You have to list out ALL the factors and in prime factors.
What are prime factors? They are factors of the number and they are the smallest possible factor which cannot be divided any further.
Look at the first question.
16 and 24
Factorise t...