56, 70, 14, 77, 63, 21, 28, 21, 63, 63, 70, 42, 28, 49, 21, 42, 35, 63, 42, 35, 56, 77, 42, 49, 77, 70, 28, 56, 77, 42, 63, 51, 56, 14, 42, 63, 70, 70, 14, 14, 63, 63, 14, 14, 63, 21, 70, 77, 28, 49.
Which number is the odd one out? Write down as many reasons as you can think of explaining why that number is the odd one out.
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