Divisors in Ruby in bytes. 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 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 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 Topological Sort Transpose Sentence Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 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 Topological Sort Transpose Sentence Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 71st flavono123 917 48 36ms 12 Mar 2020 71st proton 🇩🇪 917 48 35ms 1 Jun 2020 71st 4hg 🇺🇸 917 48 35ms 19 Jul 2022 71st ls-samer-abuthaher 917 48 34ms 7 Oct 2022 71st LostSyntax21 🇬🇧 917 48 38ms 22 Aug 2024 71st mishak-sys 917 48 34ms 10 Sep 2025 71st snoozingnewt 🇺🇸 917 48 36ms 4 days ago 71st AetherQuantity 917 48 39ms 3 days ago 84th caerbannogwhite 898 49 37ms 13 Apr 2018 84th shinh 898 49 35ms 8 Jun 2018 84th mgergi 898 49 40ms 29 Oct 2018 84th tsundokul 898 49 36ms 6 Nov 2018 84th gorbit99 898 49 31ms 31 Mar 2019 84th th0rex 898 49 36ms 10 Jun 2019 84th snltd 898 49 38ms 14 Aug 2019 84th ajc2 898 49 38ms 18 Oct 2019 84th fynnkroeger 898 49 34ms 10 Jan 2021 84th fitzdotlol 🇺🇸 898 49 45ms 24 May 2021 84th Lv0Sys 🇵🇱 898 49 32ms 27 May 2025 95th sk- 880 50 37ms 12 Sep 2019 95th NewDefectus 🇮🇱 880 50 35ms 23 May 2021 97th Mir0ff944 863 51 34ms 15 Nov 2019 97th wasabi-avalanches 863 51 35ms 6 Apr 2024 99th graft 846 52 31ms 11 Mar 2018 100th BrenSchaap 830 53 36ms 11 Nov 2021 100th HallMatthew314 830 53 31ms 5 Dec 2021 100th yzhs 🇩🇪 830 53 35ms 20 Jul 2022 100th purp 830 53 36ms 11 Aug 2022 100th FnControlOption 830 53 31ms 21 Aug 2022 100th Pluviolithic 830 53 35ms 20 Oct 2023 106th biinari 815 54 36ms 18 Mar 2018 106th biji1 815 54 36ms 26 Apr 2018 106th bbakersmith 815 54 35ms 15 Jul 2021 106th lbrito1 815 54 34ms 8 Jan 2022 106th galloj 🇨🇿 815 54 33ms 26 May 2022 106th Crackson4 815 54 36ms 12 Aug 2023 106th dokutan 815 54 49ms 23 Mar 2024 106th HumanoidCPU 815 54 36ms 1 Aug 2024 114th jamespeilunli 800 55 41ms 1 May 2022 115th hrrs01 786 56 33ms 26 Sep 2018 115th sapphyrus 786 56 34ms 9 Jun 2019 115th danini-the-panini 786 56 42ms 27 Aug 2019 115th tadd 786 56 48ms 16 Apr 2020 115th shibacho 🇯🇵 786 56 34ms 30 Mar 2022 115th Ralac07 🇦🇺 786 56 36ms 17 Jun 2024 121st bethdebelak 772 57 41ms 11 Mar 2018 121st atayarani 772 57 43ms 15 Jan 2019 121st CaAlden 772 57 40ms 9 May 2019 124th jetpks 759 58 36ms 27 Jun 2019 125th segiddins 746 59 34ms 24 Aug 2018 125th Noxilex 746 59 37ms 20 Mar 2019 125th handisb 746 59 33ms 18 Oct 2019 125th Michaelncallahan 746 59 38ms 30 Apr 2020 129th JKHiggins 733 60 34ms 28 Mar 2018 129th yokasuretsu 733 60 38ms 19 Apr 2018 131st sacthedev 721 61 35ms 3 Apr 2018 131st nlc 721 61 36ms 11 Apr 2018 133rd jacobsmith 710 62 42ms 15 Feb 2018 133rd yrral86 710 62 37ms 9 Mar 2018 133rd drkameleon 🇪🇸 710 62 36ms 28 Jan 2020 136th clupasq 698 63 36ms 3 Feb 2018 136th olliebaum 698 63 36ms 12 Jul 2018 136th ni3t 698 63 34ms 12 Dec 2018 136th ridingqwerty 🇺🇸 698 63 39ms 12 Jul 2022 140th ted 677 65 38ms 17 Apr 2018 140th shellbertt 🇨🇦 677 65 36ms 14 May 2021 142nd chris-arsenault 667 66 35ms 2 Feb 2018 142nd brianlwatson 667 66 35ms 11 Apr 2019 142nd san-nat 667 66 34ms 3 Mar 2021 142nd schachmattmatt 667 66 35ms 11 Aug 2021 146th ninjawarrior1337 647 68 40ms 30 Nov 2021 147th DanDobrick 629 70 38ms 23 Feb 2018 147th dCSeven 629 70 37ms 21 Mar 2019 147th dymowski 629 70 35ms 15 Jul 2019 150th ptarjan 620 71 44ms 25 Mar 2018 First Prev 76–150 of 170 Next Last