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 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 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 898th Shanethegamer 🇺🇸 800 59 51ms 13 Sep 2021 898th OhmNomNom 800 59 36ms 13 Oct 2022 898th tatzyr 🇯🇵 800 59 54ms 5 Apr 2025 904th Unremarkable 800 75 10ms 28 Sep 2018 904th ToriTheChicken 800 75 9ms 24 Jul 2020 904th ehouais 800 75 15ms 24 Aug 2020 904th cywong-amino 🇭🇰 800 75 10ms 30 Sep 2020 904th ScottHamper 800 75 9ms 23 May 2021 904th nathanadams 🇳🇿 800 75 11ms 13 Oct 2021 904th shawphy 800 75 9ms 14 Oct 2021 904th tayloia 🇬🇧 800 75 15ms 11 May 2023 904th Yewzir 🇧🇪 800 75 12ms 6 Dec 2023 913th somebody1234 800 95 6ms 20 Nov 2018 913th dokutan 800 95 6ms 15 Jan 2024 913th Yewzir 🇧🇪 800 95 6ms 6 Feb 2024 916th jared-hughes 800 104 359ms 24 Sep 2025 917th lynn 799 66 380ms 17 Feb 2024 918th cbondurant 799 76 10ms 10 May 2021 918th bob-th 799 76 45ms 24 Jan 2023 920th dokutan 798 83 2ms 27 Mar 2024 921st GrayJoKing 🇦🇺 795 88 1ms 9 Oct 2023 922nd marcin7Cd 793 90 2ms 17 May 2020 922nd dokutan 793 90 2ms 1 May 2024 924th cure-honey 🇯🇵 792 85 44ms 15 Jul 2021 924th primo-ppcg 🇹🇭 792 85 57ms 14 Jan 2025 926th roavin 790 93 357ms 16 May 2022 927th kevlened 789 76 9ms 22 Oct 2018 927th emgordon154 789 76 10ms 22 Dec 2021 927th inventshah 789 76 15ms 6 May 2022 927th helbling 🇨🇭 789 76 10ms 4 Jul 2024 931st ahmetdemirag 🇨🇾 789 77 53ms 11 Feb 2025 932nd GrayJoKing 🇦🇺 789 85 18ms 1 Mar 2021 933rd albanian-laundromat 787 67 366ms 10 Aug 2025 934th Andriamanitra 🇫🇮 786 60 58ms 20 Jul 2022 934th Babafaba 786 60 34ms 19 days ago 936th Shanethegamer 🇺🇸 786 89 2ms 9 Oct 2023 936th MeWhenI 🇻🇦 786 89 2ms 10 Oct 2023 938th Irratix 🇳🇱 784 91 2ms 19 Dec 2021 939th MeWhenI 🇻🇦 783 63 15ms 11 Nov 2021 940th SirBogman 🇺🇸 783 86 43ms 2 Nov 2022 941st CaedenHarper 🇨🇦 782 71 1,440ms 11 Sep 2025 941st albanian-laundromat 782 71 636ms 9 days ago 943rd gnuvince 781 32 9ms 2 Aug 2024 943rd codereport 🇨🇦 781 32 3ms 21 Apr 2025 945th FlyingPenguin223 781 86 2ms 27 Oct 2024 946th guliyevemil1 🇦🇿 781 87 149ms 20 Apr 2020 946th strout 781 87 176ms 15 Dec 2023 948th Shanethegamer 🇺🇸 780 74 141ms 19 Aug 2024 949th aposteriorist 🇨🇦 780 99 405ms 27 Feb 2022 949th stackofbears 780 99 446ms 5 Mar 2022 951st Natanaelel 🇸🇪 779 64 977ms 19 Sep 2021 952nd jakobwitte 779 77 10ms 21 Mar 2018 952nd j55d 779 77 11ms 29 Sep 2018 952nd Mikaeel66 779 77 12ms 11 Nov 2019 952nd ArmaanAS 779 77 10ms 8 Mar 2021 952nd Re-Adventures 🇮🇳 779 77 10ms 18 May 2021 957th Waffle3z 779 78 10ms 9 Jul 2021 957th snydej 779 78 31ms 22 Nov 2024 957th InigoK 🇺🇸 779 78 34ms 5 Sep 2025 960th KatieLG 🇬🇧 778 51 2ms 9 Dec 2020 960th msbranicky 778 51 2ms 27 Jul 2023 960th dokutan 778 51 3ms 11 Nov 2023 960th AlephSquirrel 778 51 2ms 27 Jan 2025 964th galloj 🇨🇿 778 107 1ms 28 Aug 2022 965th Irratix 🇳🇱 778 111 70ms 3 Jan 2022 966th msbranicky 777 90 2ms 11 Oct 2023 967th bastatom 776 131 291ms 25 Feb 2024 968th yzhs 🇩🇪 774 38 35ms 21 Jun 2022 969th robymus 773 61 47ms 17 Sep 2018 970th Shanethegamer 🇺🇸 772 60 402ms 9 Mar 2023 971st dpatterbee 770 132 292ms 24 Aug 2020 972nd shuding 769 78 9ms 4 May 2020 972nd igmcdowell 769 78 11ms 20 Dec 2021 972nd dylanarmstrong 769 78 10ms 24 Jan 2024 975th Eilonlif 🇮🇱 769 79 74ms 20 Feb 2023 First Prev 901–975 of 3,080 Next Last