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(just those submitted by Vantieghem)
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                99999 9999988888 8888777777 7766666665 5555544444 3333110221

Just showing those entries submitted by 'Vantieghem': (Click here to show all)

+ The largest prime that contains one of one digit, two of another digit, three of another digit, ..., and ten of another digit. [Resta and Vantieghem]




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