1, 2, 4, 7, 14, 28, 49, 98, 196
and also you can multiply negative versions to get positive 196
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56 = 23 × 7 196 = 22 × 72
-- 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 factors of 182 are: 1, 2, 7, 13, 14, 26, 91, 182 The factors of 196 are: 1, 2, 4, 7, 14, 28, 49, 98, 196 The common factors are: 1, 2, 7, 14 The Greatest Common Factor: GCF = 14
When you are finding common factors, one method is to list the factors.
All of them. Different numbers have different numbers of factors.