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# HCF of 72 and 120?

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1845
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HCF of 72 and 120?

Jan 6, 2015

#2
+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
0

I DONT KNOW IM 12wf

Jan 6, 2015
#2
+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

CPhill Jan 6, 2015
#3
0

no i mean highest common factor but nevermind i got it

Jan 6, 2015
#4
+111329
0

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

Jan 6, 2015
#5
0

GCF of 120 and 72?

Sep 26, 2016
edited by Guest  Sep 26, 2016