| 单词 | repunit number |
| 释义 | > as lemmasrepunit number A number consisting of a sequence of 1s or the single digit 1. Also repunit number.The generalized repunit number can be expressed as (10k − 1)/9, where k is a whole number. ΘΚΠ the world > relative properties > number > mathematical number or quantity > [noun] > particular qualities > other digitusa1398 argumentc1405 geodeticala1690 known quantity1702 amicable number1743 summability1900 idempotent1903 modularity1927 repunit1964 palindrome1972 seed1972 1964 A. H. Beiler Recreations in Theory of Numbers xi. 83 A number which consists of a repetend of a single digit is sometimes called a monodigit number, and for convenience the author has used the term ‘repunit number’ (repeated unit) to represent monodigit numbers consisting solely of the digit 1. 1978 Sci. Amer. Feb. 89/2 Until Williams discovered R317 last year there were only three known rep-unit primes. 1989 Nature 17 Aug. 519/3 The largest prime repunit has 1,031 1s. 2008 B. B. Brumley & K. U. Järvinen in S. F. Mølsnes et al. Public Key Infrastructure 142 We take a similar approach..as in Algorithm 2 coupled with precomputation of repunits using Algorithm 3. < as lemmas |
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