answersLogoWhite

0


Best Answer

Find the factors of all three numbers and then find the largest number that is in each list:

i.e. the factors of 18 are 1, 2, 3, 6, 9, 18.

So for example, to find the greatest common factor of 21, 28 and 42, find the factors of each:

Factors of 21 are 1,3,7,21

Factors of 28 are 1,2,4,7,14,28

Factors of 42 are 1,2,3,6,7,14,21,42

The highest number that is in all three lists is 7. Therefore, 7 is the greatest common factor.

Note: A factor is a number that divides evenly into the number. So, 2 divides evenly into 8 so 2 is a factor of 8. 3 divides evenly into 9 so 3 is a factor of 9, etc.

User Avatar

Wiki User

12y ago

Still curious? Ask our experts.

Chat with our AI personalities

RafaRafa
There's no fun in playing it safe. Why not try something a little unhinged?
Chat with Rafa
SteveSteve
Knowledge is a journey, you know? We'll get there.
Chat with Steve
ViviVivi
Your ride-or-die bestie who's seen you through every high and low.
Chat with Vivi
More answers
User Avatar

Wiki User

9y ago

The GCF is 6.

User Avatar

User Avatar

Wiki User

12y ago

6 are.

User Avatar

Add your answer:

Earn +20 pts
Q: What is the GCF of 36 24 18?
Write your answer...
Submit
Still have questions?
magnify glass
imp