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To find this, you first have to split the numbers into their prime factors:
18 = 2x3x3
54 = 2x3x3x3
The next step is to identify any common prime factors. In this case both numbers have a 2 and two 3s as prime factors. Multiply these together gives you:
2x3x3 = 18
Therefore the HCF of 18 and 54 is 18.
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Related Questions
What is the gcf of18 36 and 54?
It is: 18
What two numbers have an LCM of18 and an HCF of 3?
3 and 18 6 and 9
What is the HCF of 54 and 504?
The GCF/HCF of 54 and 504 is 18.
What is the HCF of 36 and 54?
The GCF is 18.
What is the HCF of 54 144 216?
The HCF is 18
Hcf of 12 and 54?
HCF is the highest common factor of two or more numbers. HCF of 12 and 54 is 6.
What is the HCF of 54 and 60?
6
What are the HCF for 54 42?
6
What is the HCF of 27 and 54?
27
What is the hcf of 18 and 54?
It is: 18
What is the hcf of 54 and 70?
It is: 2
What number goes into 54 and 16?
HCF(54, 16) = 2
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