Question

i know this is stupid but how do i find the gcf of 18 and 30?

Answer 1

List all th emultiples of 18 and 30

Answer 2

and the highest number that applies to both is the egcf

Answer 3

The most basic way to find the GCF is to divide by prime numbers, starting at 2. So, 18 and 30 are both divisible by 2. Next 3, and they are both divisible by 3. Next 5, but neither are divisible by 5. Thus, each of those numbers are divisible by 6, but no greater. 6 is the greatest common factor.

Answer 4

18= 1,2,3,6,9,18

Answer 5

30=1,2,3,5,6,10,15,30

Answer 6

So what is the GCF?

Answer 7

thanks because im horrible at this.

Answer 8

But what did u get as the answer?

Answer 9

6

Answer 10

YUP AWESOME!!!!!

Answer 11

thanks

Answer 12

So list the multiples of 18 and 30

Answer 13

whoops i gave you the gcf

Answer 14

I don't know i am getting confused

Answer 15

sorry

Answer 16

if im getting you confused