9
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The Highest Common Factor (HCF) of 99 is 99. This is because 99 is a prime number, meaning it only has two factors: 1 and 99. Since there are no other common factors between 99 and any other number, the HCF remains 99.
It is: 5
It is: 15
The GCF is 9.
Yes the HCF of 24 and 45 is 3