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Is $\omega(n)=16$ the maximum?

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#elementary-number-theory #prime-factorization #decimal-expansion
226
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I’ve observed an interesting pattern where the last digit of the repeating decimal sequence of 1 / prime

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#prime-numbers #inverse #decimal-expansion
87
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Show decimal expansions

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#decimal-expansion #geometric-series
310
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Show that the number $A$ is irrational

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#solution-verification #irrational-numbers #decimal-expansion
142
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Does anyone know why this is happening with 1/7?

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#sequences-and-series #elementary-number-theory #decimal-expansion
46
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Prove that: $n$ has a prime divisor which is not smaller than $11$.

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#number-theory #decimal-expansion
94
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Is there a better way to compute first digits of very large numbers?

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#logarithms #decimal-expansion #big-numbers
56
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Can the occurrence of certain digits be proven/disproven, for any arbitrary irrational number?

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#number-theory #irrational-numbers #decimal-expansion #transcendental-numbers
93
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Prove that any positive integer has a multiple whose decimal expansion involves all ten digits.

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#discrete-mathematics #decimal-expansion
130
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First digits of the iterated powers of 2

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#number-theory #dynamical-systems #decimal-expansion
54
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Integers not containing a fixed substring in their decimal representation

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#probability #number-theory #decimal-expansion
41
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Solution to $x^2 + y^2 = x' + y'$ where $x'$ and $y'$ have the same digit-representation as $x$ and $y$ but with a trailing digit $2$ respectively.

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#number-theory #circles #recreational-mathematics #decimal-expansion
47
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How is this summation expression transformed?

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#summation #binomial-theorem #decimal-expansion
94
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Is it possible to calculate the first digits of this number?

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#decimal-expansion #big-numbers
37
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Expected value of index of an n-digit number found in pi

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#expected-value #pi #decimal-expansion

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