Just for fun – this is Emily’s Calculator. All the numbers are colour-coded to their lowest prime factor according to Emily’s colour scheme. Emily doesn’t tackle zero as she interested in counted things that exist in the world. Zero is coloured black as it has a very special status of its own. This is an example of a square of numbers, similar to a small times table, where the highest number in the top-right...
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This is the table of 144 numbers that Emily, and millions like her, are drilled on every week at school. The numbers have been colour-coded to their lowest prime factor according to Emily’s scheme. Each number is repeated 2.5 times on average and some numbers appear 6 times. The table only contains the safe, friendly and boring numbers. Here is another table of 144 numbers with each appearing only once. We can see the odd...
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