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HCF of 72 and 120?

 Jan 6, 2015

Best Answer 

 #2
avatar+111329 
+5

I think you might mean "GCF".....if so...let's break each number down into its prime factors......so we have...

72  = 8 x 9  =  2^3 x 3^2

120 = 10 x 12  = 5 x 2 x 4 x 3  =  5 x 2 x 2 x 2 x 3 = 2^3 x 3  x 5

Now, we just select each different factor having the highest power...so we have

2^3 x 3^2 x 5  =   8 x 9 x 5  = 360

And that's the GCF

 

 Jan 6, 2015
 #1
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0

I DONT KNOW IM 12wf

 Jan 6, 2015
 #2
avatar+111329 
+5
Best Answer

I think you might mean "GCF".....if so...let's break each number down into its prime factors......so we have...

72  = 8 x 9  =  2^3 x 3^2

120 = 10 x 12  = 5 x 2 x 4 x 3  =  5 x 2 x 2 x 2 x 3 = 2^3 x 3  x 5

Now, we just select each different factor having the highest power...so we have

2^3 x 3^2 x 5  =   8 x 9 x 5  = 360

And that's the GCF

 

CPhill Jan 6, 2015
 #3
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0

no i mean highest common factor but nevermind i got it

 Jan 6, 2015
 #4
avatar+111329 
0

OK....good deal....!!!

 

 Jan 6, 2015
 #5
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0

GCF of 120 and 72?

 Sep 26, 2016
edited by Guest  Sep 26, 2016

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