No.
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Find a common factor of 21 and 56 and divide both by that factor to give two new numbers. If necessary, repeat the process with a common factor of these two numbers and so on. This looping can be done in one step if you can find the greatest common factor. So, for 21 and 56, the GCF = 7 So 21/56 = (21/7) / (56/7) = 3/8
The least common factor is: 1
The greatest common factor of the numbers 16 and 56 is 8.
No, they have the common factor 3.No, they have the common factor 3.No, they have the common factor 3.No, they have the common factor 3.
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