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 Continued Fractions 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL 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 ><> ALGOL 68 ArkScript 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 APL 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 Continued Fractions 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 801st jared-hughes 865 100 58ms 20 Jul 2022 802nd emgordon154 863 30 43ms 10 Sep 2025 803rd annaproxy 863 46 2ms 18 Feb 2022 804th CornerMercury 🇬🇧 862 29 3ms 21 Jan 2026 804th emgordon154 862 29 3ms 22 Feb 2026 806th MeWhenI 🇻🇦 861 78 1ms 27 Dec 2022 807th treeowl 861 79 135ms 27 Feb 2019 807th user189032 861 79 136ms 29 May 2019 807th cbrt-x 861 79 137ms 15 Sep 2023 810th emgordon154 860 58 1,297ms 22 Dec 2021 811th DaCuteRaccoon 860 65 2ms 30 Nov 2022 811th snoozingnewt 🇨🇦 860 65 4ms 1 Sep 2024 811th LostSyntax21 🇬🇧 860 65 2ms 8 Jan 2025 814th m-tkach 🇺🇦 860 77 2ms 5 Dec 2023 815th gilufin 858 55 167ms 30 May 2021 815th Natanaelel 🇸🇪 858 55 38ms 10 May 2023 815th denkyuu1 858 55 40ms 15 Feb 2026 818th emgordon154 858 90 484ms 8 Feb 2026 819th stefangimmillaro 857 66 125ms 15 Jul 2023 820th GrayJoKing 🇦🇺 857 70 11ms 20 Sep 2021 820th 0x24a537r9 857 70 12ms 10 Sep 2022 822nd JDiLenarda 🇫🇷 856 71 1,207ms 9 Oct 2020 822nd MeWhenI 🇻🇦 856 71 2,898ms 24 Oct 2024 822nd sean-niemann 🇺🇸 856 71 2,571ms 30 Oct 2024 822nd jkelly467 856 71 2,525ms 3 Nov 2025 826th MeWhenI 🇻🇦 856 101 56ms 8 May 2022 826th janbehrens 🇩🇪 856 101 58ms 26 Nov 2023 828th ovs-code 🇩🇪 855 44 156ms 31 Dec 2023 829th MeWhenI 🇻🇦 855 75 35ms 20 Jun 2022 829th sean-niemann 🇺🇸 855 75 39ms 19 Nov 2024 831st clockworknazo 855 82 5ms 13 Oct 2022 831st ovs-code 🇩🇪 855 82 5ms 7 Feb 2023 831st Lydxn 🇨🇦 855 82 4ms 28 Feb 2023 834th ScottHamper 854 86 373ms 21 Nov 2021 834th amazingalek 🇳🇴 854 86 387ms 27 Dec 2025 836th ovs-code 🇩🇪 852 62 405ms 2 Mar 2024 836th BREMAUCY 🇫🇷 852 62 374ms 6 Dec 2025 838th GolfingSuccess 🇬🇷 851 77 2ms 19 Mar 2025 838th sean-niemann 🇺🇸 851 77 2ms 19 Nov 2025 840th Yewzir 🇧🇪 851 98 354ms 2 Oct 2025 841st DialFrost 🇸🇬 850 79 1ms 26 Dec 2024 842nd RussellEmerine 850 80 138ms 30 Nov 2019 842nd iczelia 🇩🇪 850 80 159ms 20 Oct 2025 844th NewDefectus 🇮🇱 850 84 2ms 16 Dec 2021 845th btnlq 849 68 3ms 16 Jul 2023 845th ovs-code 🇩🇪 849 68 149ms 3 Aug 2024 847th DialFrost 🇸🇬 849 78 2ms 26 Dec 2024 848th prplz 🇦🇺 847 96 119ms 30 Apr 2022 848th elgan65536 🇺🇸 847 96 124ms 11 Nov 2023 850th kg583 🇺🇸 846 95 40ms 26 Jul 2025 851st lynn 845 59 1,255ms 25 May 2022 851st DialFrost 🇸🇬 845 59 1,322ms 26 Dec 2024 851st janlelis 845 59 1,323ms 14 Aug 2025 851st dokutan 845 59 1,213ms 9 days ago 855th jared-hughes 845 71 9ms 29 Oct 2021 855th stefangimmillaro 845 71 9ms 27 Aug 2022 855th Maznek 845 71 8ms 19 Jun 2023 855th snoozingnewt 🇨🇦 845 71 9ms 29 Nov 2025 859th primo-ppcg 🇹🇭 844 67 123ms 27 Mar 2021 859th snoozingnewt 🇨🇦 844 67 123ms 29 Nov 2025 861st Frowny 844 72 9ms 3 Jul 2020 861st lifthrasiir 🇰🇷 844 72 10ms 13 Nov 2024 863rd snoozingnewt 🇨🇦 843 66 884ms 29 Nov 2025 864th villfa 842 75 14ms 30 Nov 2018 864th LostSyntax21 🇬🇧 842 75 14ms 8 Jan 2025 866th Jacob385 842 99 516ms 27 Oct 2025 867th jslip 841 35 33ms 5 Sep 2018 867th rak1507 🇬🇧 841 35 34ms 20 Sep 2021 869th Steffan153 🇫🇮 841 99 1ms 28 Jan 2023 869th pardouin 🇫🇷 841 99 1ms 21 Sep 2024 869th sean-niemann 🇺🇸 841 99 1ms 9 May 2025 872nd Laar 840 81 137ms 1 Apr 2019 872nd alomiF 840 81 136ms 5 Oct 2023 872nd brimstonetrader 840 81 115ms 26 Jan 2024 875th annaproxy 840 85 1ms 18 May 2023 876th AdrienHache 🇫🇷 840 103 60ms 7 Jan 2024 876th emgordon154 840 103 61ms 7 Feb 2026 878th HumanEquivalentUnit 839 59 349ms 10 Oct 2020 878th madex 🇩🇪 839 59 474ms 5 days ago 880th snoozingnewt 🇨🇦 839 80 1ms 29 Nov 2025 First Prev 801–880 of 3,215 Next Last