Question

what is the HCF of 27 and 63
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Answer 1

Answer:

27=3×3×3=33

63=3×3×7=32×7

Highest common factor-

HCF(27,63)=32=9

Answer 2

Answer:

27=3×3×3=3  

3

 

63=3×3×7=3  

2

×7

Highest common factor-

HCF(27,63)=3  

2

=9