The greatest common factor of 45 and 72 is 9.
The given numbers are
45 and 72
We know that,
The greatest common factor (GCF) is the biggest number that is a factor of two or more numbers.
The greatest number (factor) divides them, yielding a Natural number. Once all of the number's variables have been identified, there are a handful that are shared by both.
The greatest common factor is the largest number found among the common factors. The GCF is often referred to as the HCF (Highest Common Factor).
Now factorize 45
45 = 3x3x5
Now factorize 72
72 = 2x2x2x3x3
Now the common factors are:
3x3
= 9
Thus the GCF ⇒ 9
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