SOLUTION: what is the similarity with the numbers 85,19,17,4 and 2?

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Question 1014480: what is the similarity with the numbers 85,19,17,4 and 2?
Found 2 solutions by ikleyn, Alan3354:
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
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Do we (they) study it in the school math?


Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
what is the similarity with the numbers 85,19,17,4 and 2?
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None of them are 33 1/3 or 45 or 78.