When you are finding common factors, one method is to list the factors.
-- List all factors of the first number. -- List all factors of the second number. -- If there are more than two numbers, list all factors of each one. -- Find the set of factors that are on every list. -- Find the greatest factor in the set.
Two or more numbers must be given to give a list of their common factors and any other information that is needed about them.
All integers have factors. Some integers have some of the same factors as other integers. These are known as common factors. 3 is a common factor of 6 and 9.
Factor them.2 x 5 = 102 x 3 x 3 = 18Select the common factor.The GCF is 2.How to find the greatest common factor of any two numbers:-- List all the factors of the first number. (Don't forget ' 1 ' and the number itself.)-- List all the factors of the second number. (Don't forget ' 1 ' and the number itself.)-- Make a new list: All factors that appear on both of the first two lists.-- The largest number on the third list is the greatest common factor of the original two numbers.
The product of all the common prime factors is the GCF. The product of all common factors would vary according to the list.
When you are finding common factors, one method is to list the factors.
The common factors are: 1, 2, 4.
The common factors are: 1, 2, 5, 10.
The common factors of 28 and 54 are: 1, 2
1,3,9
The common factors are: 1, 2, 4, 8, 16.
20: 1,2,4,5,10,2050: 1,2,5,10,25,50Common Factors: 1,2,5,10
3 and 5
1,2, and 4
-- List all factors of the first number. -- List all factors of the second number. -- If there are more than two numbers, list all factors of each one. -- Find the set of factors that are on every list. -- Find the greatest factor in the set.
The one that contains all the factors of 18.