Prime Numbers in Ruby in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Morse Decoder Morse Encoder 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Morse Decoder Morse Encoder 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 58th cdesodt 818 33 11 Sep 2023 58th aaronze 🇦🇺 818 33 21 Sep 2023 58th FlyingPenguin223 818 33 16 Nov 2023 58th ngthanhtrung23 818 33 15 Mar 2024 80th ConorOBrien-Foxx 794 34 2 Jul 2018 80th acornellier 794 34 8 Dec 2018 80th Yytsi 794 34 14 Mar 2019 80th Marin-Kitagawa 794 34 18 Jul 2021 80th pandapawskat 794 34 7 Oct 2021 80th DaCuteRaccoon 794 34 16 Apr 2022 80th ls-samer-abuthaher 794 34 2 Dec 2022 80th annaproxy 794 34 15 Sep 2023 88th Haksell 🇦🇶 771 35 6 Apr 2020 88th daninnm 771 35 23 Jul 2021 88th shellbertt 🇨🇦 771 35 8 Sep 2021 88th dokutan 771 35 30 Apr 2024 92nd clupasq 750 36 3 Feb 2018 92nd tadd 750 36 16 Apr 2020 92nd yzhs 🇩🇪 750 36 26 Jul 2021 92nd LostSyntax21 🇬🇧 750 36 22 Aug 2024 96th j55d 730 37 4 Dec 2017 96th Secozzi 730 37 28 Nov 2019 96th kinoute 🇫🇷 730 37 10 Sep 2021 96th KrausRaus 🇺🇸 730 37 31 Dec 2021 100th mgergi 711 38 10 Oct 2018 100th SamirHodzic 711 38 11 Oct 2018 100th CaAlden 711 38 9 May 2019 100th reireias 711 38 30 Jul 2019 100th Mir0ff944 711 38 4 Apr 2020 100th Gradizer 711 38 13 Mar 2021 100th typewriter 711 38 1 Jun 2021 100th JRaspass 🇬🇧 711 38 21 Apr 2022 108th greghull 692 39 8 Nov 2017 108th robymus 692 39 18 Sep 2018 108th purp 692 39 13 Aug 2022 108th aydamak 692 39 15 May 2024 112th ndren 675 40 2 Aug 2023 112th BREMAUCY 🇫🇷 675 40 18 Mar 2024 112th Andriamanitra 🇫🇮 675 40 25 Feb 2025 115th Boostik 659 41 8 Jan 2018 115th ajc2 659 41 1 May 2018 115th segiddins 659 41 24 Aug 2018 115th giruzou 659 41 24 Mar 2019 115th 0xddom 659 41 18 Dec 2019 120th nlc 643 42 18 Dec 2017 120th adoxography 643 42 10 Oct 2019 122nd stevehodges 628 43 8 Nov 2017 122nd graft 628 43 10 Mar 2018 122nd SephQ 628 43 7 Feb 2021 125th ndimov 614 44 13 Oct 2017 125th mogron 614 44 13 Dec 2019 125th sapphyrus 614 44 18 Feb 2020 125th ninjawarrior1337 614 44 1 Dec 2021 125th HallMatthew314 614 44 5 Dec 2021 125th mikiymk 614 44 21 Sep 2023 131st somebody1234 600 45 20 Jan 2020 131st BrenSchaap 600 45 13 Nov 2021 133rd bbakersmith 587 46 30 Jul 2021 133rd gfund 587 46 5 Oct 2022 135th Anonymousellama21 574 47 18 Feb 2022 136th dwayneparton 563 48 7 May 2020 136th stellartux 563 48 24 Dec 2023 138th iamsolarpowered 551 49 15 Dec 2017 138th th1rt3en 551 49 13 May 2018 138th zstearman3 551 49 12 Jul 2018 138th atayarani 551 49 18 Jan 2019 138th HumanoidCPU 551 49 3 Jul 2024 138th Florian-Mt 551 49 14 Jul 2024 144th domgetter 529 51 10 Jun 2020 144th boxjelly 529 51 11 Feb 2021 146th babcockd 519 52 19 Dec 2017 146th michaelrychly 519 52 5 Jun 2019 146th Ralac07 🇦🇺 519 52 4 Jul 2024 149th FnControlOption 509 53 21 Aug 2022 150th sacthedev 500 54 3 Apr 2018 Prev 76–150 of 175 Next