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 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 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 Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization 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 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 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 Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 676th msbranicky 867 117 8 Sep 2023 677th lynn 865 34 13 Apr 2021 677th jared-hughes 865 34 30 Sep 2021 677th Natanaelel 🇸🇪 865 34 28 Nov 2023 677th primo-ppcg 🇹🇭 865 34 24 Mar 2025 681st MeWhenI 🇻🇦 864 61 23 May 2023 682nd DialFrost 🇸🇬 864 73 12 Oct 2023 683rd annaproxy 863 46 18 Feb 2022 684th GrayJoKing 🇦🇺 863 61 15 Jan 2024 684th namelessiw 863 61 5 Mar 2024 684th neel11235813 863 61 10 Mar 2024 684th duckyluuk 🇳🇱 863 61 14 Jul 2024 684th b-illy 🇬🇧 863 61 14 Sep 2024 684th DialFrost 🇸🇬 863 61 26 Dec 2024 690th Yewzir 🇧🇪 863 135 23 Apr 2023 691st emplv 🇱🇻 862 67 28 Mar 2025 692nd duckyluuk 🇳🇱 862 70 26 Oct 2024 693rd Steffan153 🇫🇮 862 81 3 Feb 2023 693rd GrayJoKing 🇦🇺 862 81 12 Feb 2023 695th ovs-code 🇩🇪 862 95 10 Jan 2023 696th MeWhenI 🇻🇦 862 98 28 Aug 2024 697th jared-hughes 862 100 20 Jul 2022 698th MeWhenI 🇻🇦 861 78 27 Dec 2022 699th emgordon154 859 58 22 Dec 2021 700th treeowl 859 79 27 Feb 2019 700th user189032 859 79 29 May 2019 700th cbrt-x 859 79 15 Sep 2023 703rd gilufin 857 55 30 May 2021 703rd Natanaelel 🇸🇪 857 55 10 May 2023 705th DaCuteRaccoon 857 65 30 Nov 2022 705th snoozingnewt 🇺🇸 857 65 1 Sep 2024 705th LostSyntax21 🇬🇧 857 65 8 Jan 2025 708th m-tkach 🇺🇦 857 77 5 Dec 2023 709th Jacob385 857 136 21 Feb 2025 710th GrayJoKing 🇦🇺 856 70 20 Sep 2021 710th 0x24a537r9 856 70 10 Sep 2022 712th ovs-code 🇩🇪 855 44 31 Dec 2023 713th JDiLenarda 🇫🇷 854 71 9 Oct 2020 714th stefangimmillaro 853 66 15 Jul 2023 715th MeWhenI 🇻🇦 853 101 8 May 2022 715th janbehrens 🇩🇪 853 101 26 Nov 2023 717th MeWhenI 🇻🇦 852 75 20 Jun 2022 717th sean-niemann 🇺🇸 852 75 19 Nov 2024 719th clockworknazo 851 82 13 Oct 2022 719th ovs-code 🇩🇪 851 82 7 Feb 2023 719th Lydxn 🇨🇦 851 82 28 Feb 2023 722nd MeWhenI 🇻🇦 850 71 24 Oct 2024 722nd sean-niemann 🇺🇸 850 71 30 Oct 2024 724th DialFrost 🇸🇬 850 79 26 Dec 2024 725th ScottHamper 850 86 21 Nov 2021 726th ovs-code 🇩🇪 849 62 2 Mar 2024 726th CaedenHarper 🇨🇦 849 62 1 Feb 2025 728th ovs-code 🇩🇪 849 68 3 Aug 2024 729th RussellEmerine 849 80 30 Nov 2019 729th Natanaelel 🇸🇪 849 80 31 Mar 2022 731st NewDefectus 🇮🇱 849 84 16 Dec 2021 732nd btnlq 847 68 16 Jul 2023 733rd DialFrost 🇸🇬 846 78 26 Dec 2024 734th lynn 845 59 25 May 2022 734th DialFrost 🇸🇬 845 59 26 Dec 2024 736th dokutan 845 102 14 Apr 2024 737th jared-hughes 844 71 29 Oct 2021 737th stefangimmillaro 844 71 27 Aug 2022 737th Maznek 844 71 19 Jun 2023 740th Frowny 843 72 3 Jul 2020 740th lifthrasiir 🇰🇷 843 72 13 Nov 2024 742nd Lydxn 🇨🇦 843 83 10 Oct 2023 742nd ovs-code 🇩🇪 843 83 10 Oct 2023 744th prplz 🇦🇺 843 96 30 Apr 2022 744th elgan65536 843 96 11 Nov 2023 746th primo-ppcg 🇹🇭 841 67 27 Mar 2021 746th Steffan153 🇫🇮 841 67 28 Jan 2023 748th villfa 841 75 30 Nov 2018 748th LostSyntax21 🇬🇧 841 75 8 Jan 2025 750th jslip 840 35 5 Sep 2018 Prev 676–750 of 2,843 Next