Find the GCF 105 , 189

Math
105 , 189
Find the common factors for the numerical part:
105,189
The factors for 105 are 1,3,5,7,15,21,35,105.
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The factors for 105 are all numbers between 1 and 105, which divide 105 evenly.
Check numbers between 1 and 105
Find the factor pairs of 105 where x⋅y=105.
xy1105335521715
List the factors for 105.
1,3,5,7,15,21,35,105
1,3,5,7,15,21,35,105
The factors for 189 are 1,3,7,9,21,27,63,189.
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The factors for 189 are all numbers between 1 and 189, which divide 189 evenly.
Check numbers between 1 and 189
Find the factor pairs of 189 where x⋅y=189.
xy1189363727921
List the factors for 189.
1,3,7,9,21,27,63,189
1,3,7,9,21,27,63,189
List all the factors for 105,189 to find the common factors.
105: 1,3,5,7,15,21,35,105
189: 1,3,7,9,21,27,63,189
The common factors for 105,189 are 1,3,7,21.
1,3,7,21
The GCF (HCF) of the numerical factors 1,3,7,21 is 21.
21
Find the GCF 105 , 189

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