factor out the coefficient of the variable means use how any k's there are, as k is our variable. this is 1.2 the greatest common factor of 1.2 and 2.4 can be found easier by multiplying both by 10 = 12 and 24
then find the factors of these two numbers: 12 = 1, 2, 3, 4, 6, 12 24 = 1, 2, 3, 4, 6, 8, 12, 24
the common factors are: 1, 2, 3, 4, 6 and 12
the greatest of these factors is 12, and therefore the greatest common factor. divide this answer by 10, as we multiplied it earlier. so the greatest common factor of 1.2 and 2.4 is 1.2
The coefficient in the expression is 1.2.
The greatest common factor is 1.2. ;
The coefficient in the expression is 2, and the greatest common factor is also 2. Factoring out the GCF gives the expression 2 ( k + 1.2 ) .
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