repunit
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See also: repunît
English
Etymology
Blend of rep(eated) + unit.
Noun
repunit (plural repunits)
- A repdigit consisting only of one or more occurrences of the digit 1.
- 11, 111, and 1,111 are repunits.
- 1991, Paulo Ribenboim, The Little Book of Big Primes, page 172:
- The only known prime repunits are R2, R19, R23, and more recently R317 (discovered by Williams in 1978) and R1031 (discovered by Williams & Dubner in 1986). Moreover, Dubner has determined that for every other prime p less than 10000, the repunit Rp is composite.
Hypernyms
Anagrams
French
Pronunciation
Verb
repunit
- inflection of repunir:
- third-person singular present indicative
- third-person singular past historic