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 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 Minesweeper 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 Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Minesweeper 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 Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 676th nwellnhof 🇩🇪 872 99 51ms 3 Jan 2022 676th Alex-x90 🇺🇸 872 99 53ms 20 Sep 2022 676th Steffan153 🇫🇮 872 99 54ms 28 Jan 2023 676th ovs-code 🇩🇪 872 99 50ms 3 Jun 2024 676th roupiq 🇵🇱 872 99 54ms 8 Jun 2024 676th Herbert00709 🇵🇱 872 99 55ms 8 Jun 2024 676th sean-niemann 🇺🇸 872 99 57ms 6 Aug 2024 683rd edsrzf 🇳🇿 871 95 2ms 5 Mar 2025 684th DialFrost 🇸🇬 871 148 1,014ms 12 Jan 2025 684th emgordon154 871 148 871ms 12 Jan 2025 684th Shanethegamer 🇺🇸 871 148 869ms 13 Jan 2025 684th KatieLG 🇬🇧 871 148 858ms 13 Jan 2025 684th HumanoidCPU 871 148 834ms 13 Jan 2025 684th dokutan 871 148 811ms 13 Jan 2025 684th GolfingSuccess 🇬🇷 871 148 826ms 18 Jan 2025 684th ovs-code 🇩🇪 871 148 841ms 24 Jan 2025 684th CaedenHarper 🇨🇦 871 148 828ms 25 Jan 2025 684th MeWhenI 🇻🇦 871 148 838ms 9 Feb 2025 684th pardouin 🇫🇷 871 148 835ms 25 Feb 2025 684th albanian-laundromat 871 148 849ms 25 Jul 2025 696th AdrienHache 🇫🇷 870 82 2ms 7 Jan 2024 696th pardouin 🇫🇷 870 82 2ms 8 Oct 2024 696th LostSyntax21 🇬🇧 870 82 2ms 8 Jan 2025 696th TeodorDyakov 🇧🇬 870 82 2ms 5 Mar 2025 700th primo-ppcg 🇹🇭 869 69 9ms 27 Nov 2019 700th jakzo 869 69 19ms 5 Sep 2021 700th Shanethegamer 🇺🇸 869 69 11ms 25 Apr 2023 703rd msbranicky 869 117 267ms 8 Sep 2023 704th dcgjb 868 57 237ms 6 May 2024 705th ArmaanAS 868 70 9ms 8 Mar 2021 705th Hebelub 868 70 10ms 5 Jan 2024 705th Dataen 868 70 10ms 5 Jan 2024 705th dokutan 868 70 10ms 23 Jan 2024 709th duckyluuk 🇳🇱 867 70 4,182ms 26 Oct 2024 710th lynn 866 34 41ms 13 Apr 2021 710th jared-hughes 866 34 34ms 30 Sep 2021 710th Natanaelel 🇸🇪 866 34 43ms 28 Nov 2023 710th primo-ppcg 🇹🇭 866 34 37ms 24 Mar 2025 710th SirBogman 🇺🇸 866 34 36ms 8 Jul 2025 710th fuzzylojik-golf 🇺🇸 866 34 35ms 9 Sep 2025 716th MeWhenI 🇻🇦 866 61 5ms 23 May 2023 717th DialFrost 🇸🇬 866 73 1,405ms 12 Oct 2023 718th ovs-code 🇩🇪 866 95 28ms 10 Jan 2023 719th GrayJoKing 🇦🇺 865 61 401ms 15 Jan 2024 719th namelessiw 865 61 337ms 5 Mar 2024 719th neel11235813 865 61 392ms 10 Mar 2024 719th duckyluuk 🇳🇱 865 61 476ms 14 Jul 2024 719th b-illy 🇬🇧 865 61 398ms 14 Sep 2024 719th DialFrost 🇸🇬 865 61 426ms 26 Dec 2024 719th fuzzylojik-golf 🇺🇸 865 61 402ms 30 May 2025 719th CornerMercury 🇬🇧 865 61 437ms 26 days ago 727th Steffan153 🇫🇮 865 81 3ms 3 Feb 2023 727th GrayJoKing 🇦🇺 865 81 3ms 12 Feb 2023 729th emgordon154 863 30 49ms 10 Sep 2025 730th annaproxy 863 46 3ms 18 Feb 2022 731st MeWhenI 🇻🇦 863 98 43ms 28 Aug 2024 732nd jared-hughes 863 100 53ms 20 Jul 2022 733rd MeWhenI 🇻🇦 861 78 2ms 27 Dec 2022 734th treeowl 861 79 172ms 27 Feb 2019 734th user189032 861 79 184ms 29 May 2019 734th cbrt-x 861 79 165ms 15 Sep 2023 737th emgordon154 860 58 800ms 22 Dec 2021 738th m-tkach 🇺🇦 860 77 3ms 5 Dec 2023 739th DaCuteRaccoon 859 65 3ms 30 Nov 2022 739th snoozingnewt 🇺🇸 859 65 4ms 1 Sep 2024 739th LostSyntax21 🇬🇧 859 65 2ms 8 Jan 2025 742nd gilufin 858 55 212ms 30 May 2021 742nd Natanaelel 🇸🇪 858 55 38ms 10 May 2023 744th GrayJoKing 🇦🇺 857 70 13ms 20 Sep 2021 744th 0x24a537r9 857 70 13ms 10 Sep 2022 746th stefangimmillaro 856 66 117ms 15 Jul 2023 747th JDiLenarda 🇫🇷 856 71 1,211ms 9 Oct 2020 748th ovs-code 🇩🇪 855 44 149ms 31 Dec 2023 749th MeWhenI 🇻🇦 855 101 53ms 8 May 2022 749th janbehrens 🇩🇪 855 101 53ms 26 Nov 2023 First Prev 676–750 of 3,087 Next Last