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How to check quickly $\frac{2}{3}=.101010... $ holds?

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#binary #decimal-expansion
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Determine whether the decimal expansion of a rational number is infinite

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#rational-numbers #decimal-expansion
250
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What is the biggest fivedigit $abcde$ number, thats divisible by $bcde$, $cde$, $de$ and $e$?

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#elementary-number-theory #decimal-expansion
725
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Formal notation for representing decimal numbers

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#soft-question #notation #number-systems #decimal-expansion
608
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Kaprekar Process and Palindromes.

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#combinatorics #elementary-number-theory #decimal-expansion #palindrome
11.1k
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How many digits does the integer zero have?

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#notation #decimal-expansion
160
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Why $6$? Is this meant to be intuitive?

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#elementary-number-theory #decimal-expansion
96
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Proof that $2^{0.5}$ will not touch the $1.5$ mark on the number line when we try to mark it exactly?

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#decimal-expansion
281
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Find the fraction that creates a repeating decimal that repeats certain digits

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#algebra-precalculus #arithmetic #fractions #decimal-expansion
1.3k
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nonzero digits in decimal representation of $\sqrt{2}$

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#number-theory #contest-math #decimal-expansion
290
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Is there a $k$ such that $2^n$ has $6$ as one of its digits for all $n\ge k$?

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#elementary-number-theory #modular-arithmetic #exponentiation #decimal-expansion
293
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Question about repeating decimal?

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#decimal-expansion
1.6k
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Repeating Decimal in different base

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#arithmetic #decimal-expansion
352
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Does π start with two identical decimal sequences?

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#irrational-numbers #pi #decimal-expansion
2.4k
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How to get the amount of digits after the decimal point

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#arithmetic #decimal-expansion

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