倒и计 - 计
じ计 (Repunit) 璶―琌┮Τ计А琌睲︹1ирぇ崩約璝计Τ 计ぃ琌 1 τ计А琌 1 и獽嘿ぇじ计 (Near Repunit)璝计獽琌じ计 (Near Repunit Prime)
计 (Repdigit) ぃ﹚璶―┮Τ计А琌睲︹1计睲︹7单羭玻ネゲ琌计 777777 ゲ﹚琌 7 ┪ 111111 计┮иΤ砍届计 (Near Repdigit) ┪计 (Near Repdigit Prime)Τ计㎝计ぃ计腨τē┮Τ蛮计琌计珿﹚竡计σ納┪计 101, 113, 131, 151, 181, 191, 199, 211, 223, 227 单(OEIS A164937)
腨τēじ计琌计栋
把σゅ膍の呼
Ball, W. W. R. and Coxeter, H. S. M. Mathematical Recreations and Essays, 13th ed. New York: Dover, p. 66, 1987.
Beiler, A. H. "11111...111." Ch. 11 in Recreations in the Theory of Numbers: The Queen of Mathematics Entertains. New York: Dover, 1966.
Caldwell, C. K. "The Top Twenty: Generalized Repunit ." http://primes.utm.edu/top20/page.php?id=16.
Weisstein, E. W. "Repunit." From MathWorld. http://mathworld.wolfram.com/Repunit.html.