15, 30,45, 60, 75, 90, 105,.........................
any number that is a multiple of 15
Common factors are factors that are the same for two or more numbers.
The greatest of the common factors of two or more numbers is the GCF
They are called common factors when they are the same for two or more numbers. They are factors that are common to both number.
The greatest of common factors of two or more numbers is called the greatest common factor, or GCF.
Common Factors
All nonzero numbers have factors. Some numbers have some of the same factors as other numbers. These are known as common factors.Common factors are factors that two or more numbers have in common. These are factors that are the same. All integers will have 1 as a common factor. Some integers will have additional common factors. For example, 4 and 6 have as their common factors 1 and 2.Numbers that evenly divide one or more numbersEx: 2 is a common factor for the numbers 4 and 6
For common factors to exist, there needs to be one or more numbers to compare the factors of.
they are closely related, but GCF (greatest common factor) is the largest common factor between two or more numbers.
common factors
When two or more numbers each have one or more of the same factors, these factors are called common factors. A single number does not have common factors.
There are not a greatest common factor, a least common factor, or common factors of a single number, such as 57, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are no common factors.
Common factors are used to compare two or more numbers. A single number cannot have common factors.