Anything that isn't 1, 3, 5 or 15.
The highest common factor of 15 and 45 is 15
Since 15 is a factor of 45, and 15's largest factor cannot be larger than itself, the greatest common factor of 15 and 45 is 15.
The greatest common factor of 45 and 105 is 15.
The GCF of 15 and 45 is 15Since 15 is a factor of 45, and 15's largest factor cannot be larger than itself, the greatest common factor of 15 and 45 is 15.Since 15 is a factor of 45, it is automatically the GCF.15
It is not possible to give a sensible answer to this question. The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. Since 15 over 45 is a single rational number, you have only one number in the question! .
The greatest common factor of 45 and 150 is 15.
The Greatest Common Factor of 15, 45: 15The Least Common Multiple of 15, 45: 45
The greatest common factor of 45 and 225 is 15.The GCF is: 45
Anything that isn't 1, 3, 5 or 15.
Anything that isn't 1, 3, 5, 15.
15 and 15000 have a greatest common factor of 15
15 is a factor of 45, but it is not a prime number.