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 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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers 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 Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT 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 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 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 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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers 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 Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 54th ngthanhtrung23 818 33 15 Mar 2024 54th error256 818 33 4 May 2024 78th ConorOBrien-Foxx 794 34 2 Jul 2018 78th acornellier 794 34 8 Dec 2018 78th Yytsi 794 34 14 Mar 2019 78th Marin-Kitagawa 794 34 18 Jul 2021 78th pandapawskat 794 34 7 Oct 2021 78th DaCuteRaccoon 794 34 16 Apr 2022 78th ls-samer-abuthaher 794 34 2 Dec 2022 78th annaproxy 794 34 15 Sep 2023 86th Haksell 🇦🇶 771 35 6 Apr 2020 86th daninnm 771 35 23 Jul 2021 86th shellbertt 🇨🇦 771 35 8 Sep 2021 86th dokutan 771 35 30 Apr 2024 90th clupasq 750 36 3 Feb 2018 90th tadd 750 36 16 Apr 2020 90th yzhs 🇩🇪 750 36 26 Jul 2021 90th LostSyntax21 🇬🇧 750 36 22 Aug 2024 94th j55d 730 37 4 Dec 2017 94th Secozzi 730 37 28 Nov 2019 94th kinoute 🇫🇷 730 37 10 Sep 2021 94th KrausRaus 🇺🇸 730 37 31 Dec 2021 98th mgergi 711 38 10 Oct 2018 98th SamirHodzic 711 38 11 Oct 2018 98th CaAlden 711 38 9 May 2019 98th reireias 711 38 30 Jul 2019 98th Mir0ff944 711 38 4 Apr 2020 98th Gradizer 711 38 13 Mar 2021 98th typewriter 711 38 1 Jun 2021 98th JRaspass 🇬🇧 711 38 21 Apr 2022 106th greghull 692 39 8 Nov 2017 106th robymus 692 39 18 Sep 2018 106th purp 692 39 13 Aug 2022 106th aydamak 692 39 15 May 2024 110th ndren 675 40 2 Aug 2023 110th BREMAUCY 🇫🇷 675 40 18 Mar 2024 110th Andriamanitra 🇫🇮 675 40 25 Feb 2025 113th Boostik 659 41 8 Jan 2018 113th ajc2 659 41 1 May 2018 113th segiddins 659 41 24 Aug 2018 113th giruzou 659 41 24 Mar 2019 113th 0xddom 659 41 18 Dec 2019 118th nlc 643 42 18 Dec 2017 118th adoxography 643 42 10 Oct 2019 120th stevehodges 628 43 8 Nov 2017 120th graft 628 43 10 Mar 2018 120th SephQ 628 43 7 Feb 2021 123rd ndimov 614 44 13 Oct 2017 123rd mogron 614 44 13 Dec 2019 123rd sapphyrus 614 44 18 Feb 2020 123rd ninjawarrior1337 614 44 1 Dec 2021 123rd HallMatthew314 614 44 5 Dec 2021 123rd mikiymk 614 44 21 Sep 2023 129th somebody1234 600 45 20 Jan 2020 129th BrenSchaap 600 45 13 Nov 2021 131st bbakersmith 587 46 30 Jul 2021 131st gfund 587 46 5 Oct 2022 133rd Anonymousellama21 574 47 18 Feb 2022 134th dwayneparton 563 48 7 May 2020 134th stellartux 563 48 24 Dec 2023 136th iamsolarpowered 551 49 15 Dec 2017 136th th1rt3en 551 49 13 May 2018 136th zstearman3 551 49 12 Jul 2018 136th atayarani 551 49 18 Jan 2019 136th HumanoidCPU 551 49 3 Jul 2024 136th Florian-Mt 551 49 14 Jul 2024 142nd domgetter 529 51 10 Jun 2020 142nd boxjelly 529 51 11 Feb 2021 144th babcockd 519 52 19 Dec 2017 144th michaelrychly 519 52 5 Jun 2019 144th Ralac07 🇦🇺 519 52 4 Jul 2024 147th FnControlOption 509 53 21 Aug 2022 148th sacthedev 500 54 3 Apr 2018 148th omurakazuaki 🇯🇵 500 54 2 May 2019 148th gutierrezm00 500 54 7 May 2020 Prev 76–150 of 172 Next