Happy Numbers in all languages 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 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 Topological Sort 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 Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 600th primo-ppcg 🇹🇭 887 72 21 Jun 2022 600th 386asm 🇺🇸 887 72 4 May 2023 603rd GrayJoKing 🇦🇺 886 65 26 Jul 2023 604th MeWhenI 🇻🇦 885 52 2 Nov 2023 604th Yewzir 🇧🇪 885 52 7 Mar 2024 604th edsrzf 🇳🇿 885 52 17 Jan 2025 607th MeWhenI 🇻🇦 885 76 16 May 2023 608th ovs-code 🇩🇪 885 87 29 Jul 2024 609th Shanethegamer 🇺🇸 884 83 12 May 2023 609th janbehrens 🇩🇪 884 83 26 Nov 2023 609th Yewzir 🇧🇪 884 83 11 Feb 2024 612th jared-hughes 883 76 6 Mar 2022 612th Steffan153 🇫🇮 883 76 25 Feb 2023 614th jared-hughes 883 132 15 Feb 2022 615th prplz 🇦🇺 882 68 12 Oct 2021 615th NewDefectus 🇮🇱 882 68 16 Dec 2021 617th marcin7Cd 882 77 11 Mar 2020 618th MeWhenI 🇻🇦 881 75 12 Sep 2022 618th sean-niemann 🇺🇸 881 75 8 Oct 2024 620th lynn 881 93 12 Jul 2023 621st benwilliamgraham 880 69 26 Jan 2019 621st OllieBoyne 🇬🇧 880 69 16 Jan 2021 621st eiburns 880 69 20 Jan 2022 621st vishwathg 880 69 16 Aug 2022 621st emirps 880 69 22 Feb 2023 621st Vaekor 880 69 9 Jul 2023 621st AVDestroyer 880 69 4 Sep 2023 621st m42km 880 69 7 Oct 2023 621st elgan65536 880 69 4 Apr 2024 630th Attero 🇸🇪 880 81 4 May 2020 630th c0d3-4-F00d 🇩🇪 880 81 5 Jan 2022 632nd edsrzf 🇳🇿 880 96 30 Dec 2024 633rd m-tkach 🇺🇦 880 98 9 Mar 2023 633rd annaproxy 880 98 22 Oct 2023 633rd Yewzir 🇧🇪 880 98 30 Dec 2023 636th edsrzf 🇳🇿 879 60 11 Apr 2025 637th Yewzir 🇧🇪 879 79 6 Dec 2023 638th emplv 🇱🇻 879 93 29 Jun 2022 639th primo-ppcg 🇹🇭 878 50 11 Oct 2020 639th o0lit3 🇺🇸 878 50 19 Apr 2021 639th armin-k1 878 50 8 Sep 2021 639th nwellnhof 🇩🇪 878 50 26 Dec 2021 639th Lydxn 🇨🇦 878 50 25 May 2022 639th saito-ta 🇯🇵 878 50 27 May 2022 645th primo-ppcg 🇹🇭 876 116 21 Apr 2020 645th kkoenig 876 116 5 Jan 2024 647th sean-niemann 🇺🇸 875 88 6 Aug 2024 648th primo-ppcg 🇹🇭 874 53 19 Oct 2020 648th MeWhenI 🇻🇦 874 53 15 Feb 2023 650th alo-gin 873 54 19 Oct 2018 650th hrrs01 873 54 14 Apr 2020 650th jared-hughes 873 54 9 Sep 2022 650th ovs-code 🇩🇪 873 54 9 May 2023 654th hemphen 873 84 28 Aug 2022 655th primo-ppcg 🇹🇭 872 77 13 Jul 2021 656th kg583 🇺🇸 871 97 28 Dec 2024 657th nwellnhof 🇩🇪 871 99 3 Jan 2022 657th Alex-x90 🇺🇸 871 99 20 Sep 2022 657th Steffan153 🇫🇮 871 99 28 Jan 2023 657th ovs-code 🇩🇪 871 99 3 Jun 2024 657th roupiq 🇵🇱 871 99 8 Jun 2024 657th Herbert00709 🇵🇱 871 99 8 Jun 2024 657th sean-niemann 🇺🇸 871 99 6 Aug 2024 664th AdrienHache 🇫🇷 870 82 7 Jan 2024 664th snoozingnewt 🇺🇸 870 82 1 Sep 2024 664th pardouin 🇫🇷 870 82 8 Oct 2024 664th LostSyntax21 🇬🇧 870 82 8 Jan 2025 664th TeodorDyakov 🇧🇬 870 82 5 Mar 2025 669th edsrzf 🇳🇿 870 95 5 Mar 2025 670th janbehrens 🇩🇪 870 134 26 Nov 2023 671st primo-ppcg 🇹🇭 869 69 27 Nov 2019 671st jakzo 869 69 5 Sep 2021 671st Shanethegamer 🇺🇸 869 69 25 Apr 2023 674th dcgjb 868 57 6 May 2024 675th msbranicky 868 117 8 Sep 2023 Prev 601–675 of 2,907 Next