



 
Hi Rebecca, There are 24 numbers you can form from the digits 8, 6, 1 and 4. I think you want to determine how many of them are divisible by 7. Unfortunately I don't see a nice way to do this. I think you just have to list the 24 numbers and try to divide each by 7. You can list the numbers in dictionary order as if the digits were numbers. The list starts
and so on. I hope this helps,  


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