The GCF of two numbers is 4. The two numbers are between 11 and 19. What are the two numbers?

2 Answers
Oct 12, 2016

The two numbers are #12# and #16#.

Explanation:

If GCF is #4#, the numbers must be multiple of #4# and between #11# and #19#, such multiples are only #12# and #16#. Further there is no common factor other than #4# between these two numbers.

Hence the two numbers are #12# and #16#.

Oct 15, 2016

12 and 16

Explanation:

4 will divide exactly into each of the numbers so we only need to consider the value of 4

#2xx4=8color(red)(" Fail - too low")#

#3xx4=12color(green)(" Works")#

#4xx4=16color(green)(" Works")#

#5xx4=20color(red)(" Fail - too high")#