Happy Numbers in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar 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 Multitap Input 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 Tower of Hanoi 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 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 Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Erlang 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar 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 Multitap Input 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 Tower of Hanoi 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 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 Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 800th MeWhenI 🇻🇦 856 71 2,136ms 24 Oct 2024 800th sean-niemann 🇺🇸 856 71 2,143ms 30 Oct 2024 800th jkelly467 856 71 2,316ms 3 Nov 2025 804th MeWhenI 🇻🇦 856 101 55ms 8 May 2022 804th janbehrens 🇩🇪 856 101 52ms 26 Nov 2023 806th ovs-code 🇩🇪 855 44 143ms 31 Dec 2023 807th MeWhenI 🇻🇦 855 75 35ms 20 Jun 2022 807th sean-niemann 🇺🇸 855 75 39ms 19 Nov 2024 809th clockworknazo 855 82 5ms 13 Oct 2022 809th ovs-code 🇩🇪 855 82 5ms 7 Feb 2023 809th Lydxn 🇨🇦 855 82 4ms 28 Feb 2023 812th ScottHamper 854 86 390ms 21 Nov 2021 812th amazingalek 🇳🇴 854 86 394ms 27 Dec 2025 814th ovs-code 🇩🇪 852 62 415ms 2 Mar 2024 814th BREMAUCY 🇫🇷 852 62 374ms 6 Dec 2025 816th Yewzir 🇧🇪 851 98 354ms 2 Oct 2025 817th DialFrost 🇸🇬 850 79 1ms 26 Dec 2024 818th RussellEmerine 850 80 138ms 30 Nov 2019 818th iczelia 🇩🇪 850 80 159ms 20 Oct 2025 820th NewDefectus 🇮🇱 850 84 2ms 16 Dec 2021 821st btnlq 849 68 3ms 16 Jul 2023 821st ovs-code 🇩🇪 849 68 133ms 3 Aug 2024 823rd DialFrost 🇸🇬 849 78 2ms 26 Dec 2024 824th dokutan 848 102 49ms 14 Apr 2024 825th prplz 🇦🇺 847 96 128ms 30 Apr 2022 825th elgan65536 🇺🇸 847 96 137ms 11 Nov 2023 827th kg583 🇺🇸 846 95 40ms 26 Jul 2025 828th lynn 845 59 1,255ms 25 May 2022 828th DialFrost 🇸🇬 845 59 1,322ms 26 Dec 2024 828th janlelis 845 59 1,323ms 14 Aug 2025 831st jared-hughes 845 71 9ms 29 Oct 2021 831st stefangimmillaro 845 71 9ms 27 Aug 2022 831st Maznek 845 71 9ms 19 Jun 2023 831st snoozingnewt 🇨🇦 845 71 11ms 29 Nov 2025 835th Frowny 844 72 9ms 3 Jul 2020 835th lifthrasiir 🇰🇷 844 72 10ms 13 Nov 2024 837th snoozingnewt 🇨🇦 843 66 884ms 29 Nov 2025 838th primo-ppcg 🇹🇭 843 67 117ms 27 Mar 2021 838th Steffan153 🇫🇮 843 67 119ms 28 Jan 2023 838th edsrzf 🇳🇿 843 67 123ms 23 Jun 2025 838th snoozingnewt 🇨🇦 843 67 136ms 29 Nov 2025 842nd villfa 842 75 15ms 30 Nov 2018 842nd LostSyntax21 🇬🇧 842 75 13ms 8 Jan 2025 844th Jacob385 842 99 516ms 27 Oct 2025 845th jslip 841 35 33ms 5 Sep 2018 845th rak1507 🇬🇧 841 35 34ms 20 Sep 2021 847th ovs-code 🇩🇪 841 82 5ms 19 Nov 2025 848th Steffan153 🇫🇮 841 99 1ms 28 Jan 2023 848th pardouin 🇫🇷 841 99 1ms 21 Sep 2024 848th sean-niemann 🇺🇸 841 99 1ms 9 May 2025 851st Laar 840 81 137ms 1 Apr 2019 851st alomiF 840 81 136ms 5 Oct 2023 851st brimstonetrader 840 81 115ms 26 Jan 2024 854th annaproxy 840 85 2ms 18 May 2023 855th AdrienHache 🇫🇷 840 103 56ms 7 Jan 2024 855th emgordon154 840 103 57ms 8 days ago 857th HumanEquivalentUnit 839 59 356ms 10 Oct 2020 858th snoozingnewt 🇨🇦 839 80 2ms 29 Nov 2025 859th MeWhenI 🇻🇦 839 92 458ms 10 Oct 2022 860th Yewzir 🇧🇪 838 79 2ms 22 Dec 2023 860th albanian-laundromat 838 79 2ms 24 Jun 2025 862nd edsrzf 🇳🇿 838 97 123ms 4 Mar 2025 863rd SirFireball3521 836 45 140ms 22 Mar 2023 864th GrayJoKing 🇦🇺 836 80 100ms 15 Jul 2023 865th snoozingnewt 🇨🇦 835 84 3ms 9 Dec 2025 866th Shanethegamer 🇺🇸 833 30 3ms 13 Jan 2022 867th PatrickStephansen 🇿🇦 833 72 11ms 3 Nov 2020 867th KatieLG 🇬🇧 833 72 11ms 16 Apr 2021 867th neihousaigaai 833 72 10ms 18 Apr 2021 867th two-bad 🇬🇧 833 72 10ms 25 Feb 2024 871st mogron 832 73 11ms 13 Dec 2019 871st FlorianCassayre 🇫🇷 832 73 9ms 30 Oct 2022 871st StefanHabel 🇨🇦 832 73 9ms 11 Dec 2022 871st DrakeSeteraO 832 73 10ms 25 Oct 2025 875th duckyluuk 🇳🇱 831 73 4ms 16 Dec 2024 876th acacopardo 831 76 14ms 14 Nov 2017 876th MeWhenI 🇻🇦 831 76 17ms 15 Sep 2021 876th DaCuteRaccoon 831 76 14ms 30 Nov 2022 879th marshallward 🇺🇸 831 81 39ms 2 Sep 2022 880th Lydxn 🇨🇦 831 83 1ms 10 Oct 2023 First Prev 801–880 of 3,178 Next Last