5 if a factor of itself. To answer the question pick any other number that has 5 as a factor. For example 25. The GCF or GCD of 5 and 25 is 5.
You can also use 5 and 125.
5 and 10, among many others.
Many numbers have a GCF of 5. Here are some examples:
5 and 10, 5 and 15, 10 and 25
35 and 75, 195 and 305
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There is no Greatest Common Factor (GCF) for a single number. The Greatest Common Factor (GCF) is the largest factor common to two or more given numbers.
Since 2 and 5 are both prime numbers, the only factor they have in common is 1. Therefore, the highest common factor of the two numbers is 1.
Most Common Factor, Greatest Common Factor, Highest Common Factor... all the same thing.
-- The common factors of 3, 15, and 9 are 1 and 3 . -- Their greatest common factor is 3 . -- When discussing numbers, there is no such thing as the 'most' common factor.
All numbers have factors. Some numbers have some of the same factors as other numbers. These are known as common factors. When put in a list, the largest of these is known as the greatest common factor, or GCF. Some people refer to this as the highest common factor, or HCF. Calling it the most common factor would be confusing, since people tend to think of "most common" as something that happens frequently.
Example: 30 and 42The factors of 30 are:1, 2, 3, 5, 6, 10, 15, 30The factors of 42 are:1, 2, 3, 6, 7, 14, 21, 42The common factors are:1, 2, 3, 6The Greatest Common Factor:GCF = 6
You need at least two numbers to find something in common between them.