What is the highest common factor 12 and 30 what does factor mean

6. A common factor is a number that can be divided in both numbers, so 6 can go into 12 and 30, so it is a common factor

A common factor is a number that can be divided in two numbers. 6 can be divided into 12. 6*2=12
And 6 can also be divided into 30 too. 6*5=30

So the factor of 12 and 30 is 6.
I hope this helps!!
Let me know!
+ give me brainliest answer please!!

No solution : there is no number of boxes that she bought