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Questions
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How good is Kamenetsky’s formula for the number of digits in n-factorial?

aug 27 11 at 20:28 Jacques Carette 6,717●1●14●35

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Unmathematical habits of thought and action which would be of use to mathematicians

dec 27 11 at 18:35 Edmund Harriss 875●5●18

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Theorems first published in textbooks?

dec 31 10 at 5:38 Joël 9,499●19●52

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Did Emmy Noether ever publish under a man’s name?

mar 28 12 at 23:28 Will Jagy 12.5k●1●26●45

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Are there uncountably many cube-free infinite binary words?

aug 19 11 at 5:51 James Currie 475●4●8

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Is there a non-trivial knot with trivial Homfly polynomial?

may 25 10 at 0:10 Gerry Myerson 15.7k●1●47●87

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What’s the simplest rational not expressible as a sum of a given number of unit fractions?

sep 14 10 at 11:43 Hugo van der Sanden 383●3●8

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Magic square on an infinite lattice

jan 27 11 at 0:40 Qiaochu Yuan 38.4k●5●116●301

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Small pairs a, b, every integer up to k dividing at least one of them

jun 3 at 4:53 Douglas Zare 13.2k●3●36●58