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- elementary number theory - Mathematics Stack Exchange
Some questions which seem a bit related: How can I prove this odd property?, Why is $\frac {987654321} {123456789}$ almost exactly $8$?, Why is $\frac {987654321} {123456789} = 8 0000000729?!$ and maybe some of the questions linked there
- How do we find a fraction with whose decimal expansion has a given . . .
We know $\frac {1} {81}$ gives us $0 \overline {0123456790}$ How do we create a recurrent decimal with the property of repeating: $0 \overline {0123456789}$ a) Is there a method to construct such a
- Puzzle - 123456789 = 100 with three operations?
Given the sequence 123456789: You can insert three operations ($+$,$-$,$\\times$,$ $) into this sequence to make the equation = 100 My question is: is there a way to solve this without brute forc
- The Keyboard Shift Cipher - Code Golf Stack Exchange
Given the following input: An integer n where n gt; 0 A string s where s is not empty and s~=[0-9A-Z]+ (alpha-numeric capitals only) Using a standard, simplified QWERTY keyboard (as shown below):
- Rational number that contains the sequence $0123456789$
Rational number that contains the sequence "$0123456789$" Ask Question Asked 10 years, 4 months ago Modified 10 years, 4 months ago
- Why are divisons of flipped digits almost always so whole?
After playing with my calculator for a while I tried doing $\\frac{9876543210}{0123456789}$ and it came out as $80 000000729$ which came really close to a whole number so I tried it for the first 16
- code golf - One line Keyboard - Code Golf Stack Exchange
The Challenge The goal of this challenge is to determine whether a given String can be typed using only one line of a standard UK QWERTY keyboard This is code golf, so shortest solution in bytes
- Permutation identities similar to $ (7901234568 9876543210) \cdot . . .
The above re-write (with slightly artificial but still valid pre-pending right hand side of the initial arithmetic identity with leftmost $0$) makes it to be the integer arithmetic identity, where all members are some specific permutations of all decimal base digits $1,2, ,8,9,0$ (with no duplicates) So all four numbers in above expression (two pairs yielding same ratio) are base 10
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