Here's the question you clicked on:
jjw9087
[Which pair of numbers has 6 as a common factor? 54 and 72 36 and 86 45 and 60 2 and 3
54 and 72 :p
based on the multiplication table can you factor out a 6? It's obvious 6 cannot be factored out from 2 and 3. Then you you know that 6 does not factor out of 45 nor 86... so it gives you 54 and 72 left over. What times what equals 54 and 72?