Using the greatest common factor, it is found that the greatest number of gift bags you can make is 16.
To find the number of gift bags, first we find the greatest common factor between the numbers of each item, that is, 48, 80 and 64, hence:
48 - 80 - 64|2
24 - 40 - 32|2
12 - 20 - 16|2
6 - 10 - 8|2
3 - 5 - 4
Hence, gcf(48, 80, 64) = 2 x 2 x 2 x 2 = 16
The greatest number of gift bags you can make is 16.
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