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A247312
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Positive numbers not divisible by 10 whose squares remain squares when prefixed with 100.
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3
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11252109375, 47450841796875, 187605480615234375, 712096246922607421875, 2627953955633148193359375, 9500846300153588104248046875, 29357159521824837441192448139190673828125, 80932484400013426603726400434970855712890625, 218326368611836548856645001359283924102783203125
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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11252109375^2 = 126609965386962890625 and 100126609965386962890625 is square.
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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