Question

What is the GCF of 16 and 72?


A.
16


B.
2


C.
8


D.
4

Answer 1

the greatest common factor 16 has is 8, but you also have to look at 72. Is 8 a factor of 72 ? (divide)

Answer 2

GCF:

16 - 1, 2, 4, 8, 16
72 - 1, 2, 3, 4, 6, 8, 9, ...

What is the great factor that they both have?

Answer 3

-Facepalm-

Answer 4

i know 9

Answer 5

and 8

Answer 6

No, is 9 a factor of 16? Nope? So 9 is incorrect

Answer 7

2?

Answer 8

No. That would be the LCM.

Answer 9

8 and 2

Answer 10

Actually, that wouldn't be the LCM @tHe_FiZiCx99
ANYWAY...what's the answer @icrashjk

Answer 11

Um, yes it would,

2 goes into 16 8 time
2 goes into 72 36 times

2 goes into 8 4time
2 goes into 36 18 times

2 goes into 4 2 times
2 goes into 18 9 times

So 2/9

Answer 12

LCM means lowest common MULTIPLE:

Answer 13

Yes but if I used 1 then it'd be the same thing. It's a multiple yes, 1 is a multiple of every number.

Answer 14

so the answer is

Answer 15

......

Answer 16

We aren't giving you the answer @icrashjk

Answer 17

GCF = Greatest Common Factor

The highest number that divides exactly into two or more numbers.

Answer 18

i know @tHe_FiZiCx99

Answer 19

You can also use this for further reference:
http://www.mathsisfun.com/greatest-common-factor.html

Answer 20

Ok, so what's the answer @icrashjk

Answer 21

i was thinking 16

Answer 22

Not 16, 16 doesn't divide into 72.

Answer 23

4 or 8 huh

Answer 24

@tHe_FiZiCx99 :
http://www.differencebetween.com/difference-between-gcf-and-vs-lcm/

Answer 25

I know the difference @StudyGurl14

Answer 26

but you don't know what LCM is...

Answer 27

4 is a multiple but not the greatest.

Yes, I do...

Answer 28

2 is not the LCM of 16 and 72. Neither is 1. LCM is the least common MULTIPLE. Meaning the smallest number divisible by both 16 and 72. 2 is not divisible by 16!

Answer 29

16 is divisible by 2.

16 is also divisible by 1, I'm aware of that. But if I used 1. I'd get no where as 16/1 is the same as 16..

Answer 30

I'm confused now...lol

Answer 31

can you guys help me out with the answer! :D

Answer 32

I alreayd told you @icrashjk it's not 4. Try again.

Answer 33

GCF:

16 - 1, 2, 4, 8, 16
72 - 1, 2, 3, 4, 6, 8, 9, ...

What is the great factor that they both have?

Answer 34

oh.. sorry didnt see that

Answer 35

so then its 8

Answer 36

right!

Answer 37

i got it right ???

Answer 38

yes

Answer 39

:D

Answer 40

@StudyGurl14 you said 1 is a multiple. 1 is a factor. Not a multiple.

Answer 41

no I didn't, you said that

Answer 42

http://prntscr.com/2pbim3

Answer 43

I was just restating what you said, correcting you @tHe_FiZiCx99

Answer 44

What?! O_O

Answer 45

can i submit my test???

Answer 46

If you want to ?

Answer 47

Btw we can't really help you on test's...

Answer 48

ok :D

Answer 49

Sure @icrashjk whatever.

@tHe_FiZiCx99 .....??? >_<

Answer 50

>.> Idk @StudyGurl14

Answer 51

lol idk @tHe_FiZiCx99

Answer 52

~(^^)~

k