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cwrw238 Group Title

Just for fun - i found this question in a puzzle book - explain why numbers of the form ABABAB where A and B are positive whole numbers are divisible by 7.

  • 2 years ago
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  1. mrvontar Group Title
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    because 6/7=1.

    • 2 years ago
  2. UnkleRhaukus Group Title
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    are A and B digets in a single number, or are they terms in a product?

    • 2 years ago
  3. cwrw238 Group Title
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    its because 10101 is a factor of all these numbers (e.g. 484848) and 10101 is a multiple of 7

    • 2 years ago
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