To work this out, you first need to break the numbers down into their prime factors. This gives:
72 = 2x2x2x3x3
27 = 3x3x3
The next step is to identify any common prime factors. In this case both numbers have two 3s as prime factors. Multiply these together and you get:
3x3 = 9
Therefore the HCF of 72 and 27 is 9.
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The HCF of 48 and 72 is 24. The LCM is 144.
The GCF is 72.
Hcf of 24 and 72 is 24
The GCF is 24.
If you mean the HCF (highest common factor) it is the highest number which goes into both numbers. In this case it would be 9, as 9x3=27 and 9x8=72.The GCF is: 9
The GCF is 8.
The GCF is 12.
The GCF is 12.
The HCF is: 2The LCM is: 2,520
The Least Common Multiple (LCM) for 72 252 is 504.The Highest Common Factor (HCF) for 72 252 is 36.
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