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 Continued Fractions Crossword 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 Continued Fractions Crossword 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 751st gilufin 858 55 212ms 30 May 2021 751st Natanaelel 🇸🇪 858 55 38ms 10 May 2023 753rd GrayJoKing 🇦🇺 857 70 11ms 20 Sep 2021 753rd 0x24a537r9 857 70 12ms 10 Sep 2022 755th stefangimmillaro 856 66 117ms 15 Jul 2023 756th JDiLenarda 🇫🇷 856 71 1,171ms 9 Oct 2020 757th ovs-code 🇩🇪 855 44 143ms 31 Dec 2023 758th clockworknazo 855 82 4ms 13 Oct 2022 758th ovs-code 🇩🇪 855 82 5ms 7 Feb 2023 758th Lydxn 🇨🇦 855 82 5ms 28 Feb 2023 761st MeWhenI 🇻🇦 855 101 59ms 8 May 2022 761st janbehrens 🇩🇪 855 101 51ms 26 Nov 2023 763rd MeWhenI 🇻🇦 854 71 2,773ms 24 Oct 2024 763rd sean-niemann 🇺🇸 854 71 2,794ms 30 Oct 2024 763rd jkelly467 854 71 1,958ms 19 days ago 766th ScottHamper 854 86 301ms 21 Nov 2021 767th MeWhenI 🇻🇦 853 75 40ms 20 Jun 2022 767th sean-niemann 🇺🇸 853 75 42ms 19 Nov 2024 769th ovs-code 🇩🇪 851 62 412ms 2 Mar 2024 769th CaedenHarper 🇨🇦 851 62 408ms 1 Feb 2025 771st DialFrost 🇸🇬 851 79 2ms 26 Dec 2024 772nd RussellEmerine 850 80 155ms 30 Nov 2019 772nd iczelia 🇩🇪 850 80 173ms 20 Oct 2025 774th Yewzir 🇧🇪 850 98 342ms 2 Oct 2025 775th btnlq 849 68 3ms 16 Jul 2023 775th ovs-code 🇩🇪 849 68 136ms 3 Aug 2024 777th DialFrost 🇸🇬 849 78 2ms 26 Dec 2024 778th NewDefectus 🇮🇱 849 84 2ms 16 Dec 2021 779th prplz 🇦🇺 847 96 120ms 30 Apr 2022 779th elgan65536 847 96 122ms 11 Nov 2023 781st dokutan 847 102 50ms 14 Apr 2024 782nd lynn 845 59 888ms 25 May 2022 782nd DialFrost 🇸🇬 845 59 907ms 26 Dec 2024 782nd janlelis 845 59 884ms 14 Aug 2025 785th jared-hughes 845 71 9ms 29 Oct 2021 785th stefangimmillaro 845 71 9ms 27 Aug 2022 785th Maznek 845 71 9ms 19 Jun 2023 785th KrausRaus 🇺🇸 845 71 10ms 14 Oct 2025 789th Frowny 844 72 10ms 3 Jul 2020 789th lifthrasiir 🇰🇷 844 72 9ms 13 Nov 2024 791st primo-ppcg 🇹🇭 843 67 116ms 27 Mar 2021 791st Steffan153 🇫🇮 843 67 115ms 28 Jan 2023 791st edsrzf 🇳🇿 843 67 113ms 23 Jun 2025 794th villfa 842 75 13ms 30 Nov 2018 794th LostSyntax21 🇬🇧 842 75 13ms 8 Jan 2025 796th jslip 841 35 36ms 5 Sep 2018 796th rak1507 🇬🇧 841 35 37ms 20 Sep 2021 798th ovs-code 🇩🇪 841 82 5ms 3 days ago 799th Steffan153 🇫🇮 841 99 2ms 28 Jan 2023 799th pardouin 🇫🇷 841 99 1ms 21 Sep 2024 799th sean-niemann 🇺🇸 841 99 1ms 9 May 2025 799th Jacob385 841 99 329ms 25 days ago 803rd HumanEquivalentUnit 839 59 307ms 10 Oct 2020 804th Laar 839 81 177ms 1 Apr 2019 804th alomiF 839 81 171ms 5 Oct 2023 804th brimstonetrader 839 81 134ms 26 Jan 2024 807th annaproxy 839 85 2ms 18 May 2023 808th MeWhenI 🇻🇦 839 92 450ms 10 Oct 2022 809th AdrienHache 🇫🇷 839 103 49ms 7 Jan 2024 810th Yewzir 🇧🇪 838 79 3ms 22 Dec 2023 810th albanian-laundromat 838 79 2ms 24 Jun 2025 812th edsrzf 🇳🇿 838 97 123ms 4 Mar 2025 813th SirFireball3521 836 45 145ms 22 Mar 2023 814th GrayJoKing 🇦🇺 836 80 98ms 15 Jul 2023 815th Shanethegamer 🇺🇸 833 30 3ms 13 Jan 2022 816th PatrickStephansen 🇿🇦 833 72 14ms 3 Nov 2020 816th KatieLG 🇬🇧 833 72 11ms 16 Apr 2021 816th neihousaigaai 833 72 10ms 18 Apr 2021 816th two-bad 🇬🇧 833 72 10ms 25 Feb 2024 820th mogron 832 73 9ms 13 Dec 2019 820th FlorianCassayre 🇫🇷 832 73 12ms 30 Oct 2022 820th StefanHabel 🇨🇦 832 73 10ms 11 Dec 2022 820th DrakeSeteraO 832 73 9ms 27 days ago 824th duckyluuk 🇳🇱 831 73 5ms 16 Dec 2024 825th acacopardo 831 76 13ms 14 Nov 2017 First Prev 751–825 of 3,108 Next Last