Question #bb670

1 Answer
Sep 24, 2017

See a solution process below:

Explanation:

Find the prime factors for each number as:

#7 = 1 xx 7#

#6 = 2 xx 3#

#8 = 2 xx 2 xx 2#

#20 = 2 xx 2 xx 5#

Now identify the common factors and determine the GCF:

There are no common factors across all four numbers.

Therefore:

#"GCF" = 1#