OpenStudy (anonymous):

Find the greatest common factor of 270 and 360

5 years ago
OpenStudy (anonymous):

Divide 360 by 270 and get the remainder first...

5 years ago
OpenStudy (anonymous):

ok, 1.3

5 years ago
OpenStudy (anonymous):

Or second thing you can do is to take prime factors of 270 and 360..

5 years ago
OpenStudy (anonymous):

they are both fairly obviously divisible by 10 it is also clear that they are both divisible by 9? 27 is, as is 36 so we know they are both divisible by 90

5 years ago
OpenStudy (anonymous):

i have to break it down.

5 years ago
OpenStudy (anonymous):

into exponents.

5 years ago
OpenStudy (anonymous):

therefore the greatest common factor is at least 90 \[360\div 90=4,270/90=3\] so 90 is the answer

5 years ago
OpenStudy (cwrw238):

i did this one a while ago find prime factors and look for common values 270 = 2*3*3*3*5 360 = 2*2*2*3*3*5 GCF = 2*3*3*5 = 90

5 years ago
OpenStudy (anonymous):

"(Give the answer in the numerical form in the top box and in exponential form by filling in the boxes for exponents.)"

5 years ago
OpenStudy (anonymous):

No. do not divide it properly see do like this: |dw:1340813241962:dw| Get the remainder 90?? This is not the answer yet.. Now divide the divisor 270 by the remainder ie 90... If it is wholly divisible then 90 is the GCF...

5 years ago