Answer:
B
Step-by-step explanation:
First prime factorize each number; this means breaking up the number into the product of only prime numbers.
24 = [tex]2^3*3[/tex]
36 = [tex]2^2*3^2[/tex]
72 = [tex]2^3*3^2[/tex]
Looking at these three numbers, we see that the biggest number they share is of the form: [tex]2^2*3[/tex] , where is just 12.
Thus, the answer is B.
Hope this helps!
