Niven Numbers in Ruby in chars. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Multitap Input Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 72nd Haksell 🇦🇶 744 39 43ms 22 Feb 2023 72nd AlephSquirrel 744 39 46ms 7 Mar 2023 72nd aaronze 🇦🇺 744 39 43ms 17 Sep 2023 72nd TheZwierzLF 🇵🇱 744 39 36ms 17 Dec 2025 85th segiddins 725 40 38ms 24 Aug 2018 85th TFeld00 🇩🇰 725 40 54ms 7 Jun 2019 85th flavono123 725 40 42ms 16 Jul 2019 85th snltd 725 40 49ms 14 Aug 2019 85th n1LS 725 40 49ms 23 Oct 2019 85th jstanley0 725 40 54ms 13 Dec 2020 85th Marin-Kitagawa 725 40 41ms 18 Jul 2021 85th Luj8n 725 40 38ms 12 Nov 2021 85th HallMatthew314 725 40 37ms 5 Dec 2021 85th fynnkroeger 725 40 52ms 30 Apr 2022 85th Ralac07 🇦🇺 725 40 38ms 4 Jul 2024 85th albanian-laundromat 725 40 37ms 1 Oct 2025 85th lacrosse 725 40 36ms 29 Nov 2025 85th Thinkr1 725 40 38ms 3 Feb 2026 99th hugolgst 707 41 38ms 18 May 2019 99th FnControlOption 707 41 41ms 21 Aug 2022 101st 0xddom 690 42 43ms 18 Dec 2019 101st jamespeilunli 690 42 38ms 1 May 2022 101st purp 690 42 39ms 9 Aug 2022 104th robymus 674 43 39ms 17 Sep 2018 105th esmg1 659 44 46ms 22 Aug 2018 105th annaproxy 659 44 44ms 27 Aug 2022 107th tadd 644 45 42ms 16 Apr 2020 107th pandapawskat 644 45 39ms 7 Oct 2021 107th a-apple1234 644 45 44ms 14 Feb 2023 110th idoschor 630 46 51ms 28 Dec 2020 111th reireias 617 47 38ms 31 Jul 2019 112th jacobsmith 580 50 41ms 19 May 2018 113th galloj 🇨🇿 527 55 47ms 18 Aug 2022 113th sreedevk 🇺🇸 527 55 39ms 4 Dec 2022 115th Mortis66666 509 57 40ms 3 Jun 2022 116th catflip 483 60 54ms 18 Oct 2023 117th kenakingkong 460 63 41ms 4 May 2021 118th MiranDaniel 🇨🇿 433 67 62ms 1 Sep 2023 119th boxjelly 426 68 66ms 12 Feb 2021 120th atayarani 414 70 67ms 18 Jan 2019 120th HumanoidCPU 414 70 35ms 10 Jan 2025 122nd yokasuretsu 392 74 39ms 3 May 2018 123rd graemewalters 372 78 54ms 25 Mar 2019 123rd msbranicky 372 78 57ms 8 Sep 2023 125th michaelrychly 358 81 41ms 5 Jun 2019 126th matricronia 341 85 58ms 6 May 2021 127th JRaspass 🇬🇧 302 96 41ms 19 May 2018 127th retrohun 302 96 46ms 21 Dec 2018 127th ninjawarrior1337 302 96 48ms 1 Dec 2021 127th KatieLG-Transpiler 🇬🇧 302 96 47ms 24 Jun 2022 127th Mabeloid 🇳🇴 302 96 41ms 22 Sep 2024 127th CaedenHarper 🇨🇦 302 96 34ms 16 Aug 2025 133rd zstearman3 279 104 38ms 13 Jul 2018 134th mokymok 🇺🇸 227 128 55ms 9 Nov 2021 First Prev 81–134 of 134