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The repeating sequence of digits is called "repetend" which has a certain length greater than 0, also called "period". [5] In base 10, a fraction has a repeating decimal if and only if in lowest terms, its denominator has any prime factors besides 2 or 5, or in other words, cannot be expressed as 2 m 5 n, where m and n are non-negative integers.
The integer X is the repeating digits of the fraction 1 ⁄ F, say ab***. The multiple is thus the repeating digits of the fraction 3 ⁄ F, say b***a. In order for this cyclic permutation to take place, then 3 shall be the next remainder in the long division for 1 ⁄ F. Thus F shall be 7 as 1 × 10 ÷ 7 gives remainder 3. This yields the ...
If multiplying by an integer greater than 7, there is a simple process to get to a cyclic permutation of 142857. By adding the rightmost six digits (ones through hundred thousands) to the remaining digits and repeating this process until only six digits are left, it will result in a cyclic permutation of 142857: [citation needed] 142857 × 8 ...
Cyclic numbers are related to the recurring digital representations of unit fractions.A cyclic number of length L is the digital representation of . 1/(L + 1).Conversely, if the digital period of 1/p (where p is prime) is
In contrast with its rows and columns, the diagonals of this square do not sum to 27; however, their mean is 27, as one diagonal adds to 23 while the other adds to 31.. All prime reciprocals in any base with a period will generate magic squares where all rows and columns produce a magic constant, and only a select few will be full, such that their diagonals, rows and columns collectively yield ...