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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 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 ><> ALGOL 68 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 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 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 801st MeWhenI 🇻🇦 861 78 1ms 27 Dec 2022 802nd treeowl 861 79 135ms 27 Feb 2019 802nd user189032 861 79 136ms 29 May 2019 802nd cbrt-x 861 79 137ms 15 Sep 2023 805th emgordon154 860 58 1,297ms 22 Dec 2021 806th DaCuteRaccoon 860 65 2ms 30 Nov 2022 806th snoozingnewt 🇨🇦 860 65 4ms 1 Sep 2024 806th LostSyntax21 🇬🇧 860 65 2ms 8 Jan 2025 809th m-tkach 🇺🇦 860 77 2ms 5 Dec 2023 810th gilufin 858 55 167ms 30 May 2021 810th Natanaelel 🇸🇪 858 55 36ms 10 May 2023 810th denkyuu1 858 55 37ms 26 days ago 813th emgordon154 858 90 484ms 8 Feb 2026 814th GrayJoKing 🇦🇺 857 70 11ms 20 Sep 2021 814th 0x24a537r9 857 70 12ms 10 Sep 2022 816th stefangimmillaro 856 66 125ms 15 Jul 2023 817th JDiLenarda 🇫🇷 856 71 1,274ms 9 Oct 2020 817th MeWhenI 🇻🇦 856 71 2,136ms 24 Oct 2024 817th sean-niemann 🇺🇸 856 71 2,143ms 30 Oct 2024 817th jkelly467 856 71 2,316ms 3 Nov 2025 821st MeWhenI 🇻🇦 856 101 64ms 8 May 2022 821st janbehrens 🇩🇪 856 101 63ms 26 Nov 2023 823rd ovs-code 🇩🇪 855 44 156ms 31 Dec 2023 824th MeWhenI 🇻🇦 855 75 35ms 20 Jun 2022 824th sean-niemann 🇺🇸 855 75 39ms 19 Nov 2024 826th clockworknazo 855 82 5ms 13 Oct 2022 826th ovs-code 🇩🇪 855 82 5ms 7 Feb 2023 826th Lydxn 🇨🇦 855 82 4ms 28 Feb 2023 829th ScottHamper 854 86 390ms 21 Nov 2021 829th amazingalek 🇳🇴 854 86 394ms 27 Dec 2025 831st ovs-code 🇩🇪 852 62 405ms 2 Mar 2024 831st BREMAUCY 🇫🇷 852 62 374ms 6 Dec 2025 833rd GolfingSuccess 🇬🇷 851 77 1ms 19 Mar 2025 833rd sean-niemann 🇺🇸 851 77 2ms 19 Nov 2025 835th Yewzir 🇧🇪 851 98 354ms 2 Oct 2025 836th DialFrost 🇸🇬 850 79 1ms 26 Dec 2024 837th RussellEmerine 850 80 138ms 30 Nov 2019 837th iczelia 🇩🇪 850 80 159ms 20 Oct 2025 839th NewDefectus 🇮🇱 850 84 2ms 16 Dec 2021 840th btnlq 849 68 3ms 16 Jul 2023 840th ovs-code 🇩🇪 849 68 136ms 3 Aug 2024 842nd DialFrost 🇸🇬 849 78 2ms 26 Dec 2024 843rd prplz 🇦🇺 847 96 119ms 30 Apr 2022 843rd elgan65536 🇺🇸 847 96 124ms 11 Nov 2023 845th kg583 🇺🇸 846 95 40ms 26 Jul 2025 846th lynn 845 59 1,255ms 25 May 2022 846th DialFrost 🇸🇬 845 59 1,322ms 26 Dec 2024 846th janlelis 845 59 1,323ms 14 Aug 2025 846th dokutan 845 59 1,225ms 4 hours ago 850th jared-hughes 845 71 9ms 29 Oct 2021 850th stefangimmillaro 845 71 9ms 27 Aug 2022 850th Maznek 845 71 9ms 19 Jun 2023 850th snoozingnewt 🇨🇦 845 71 9ms 29 Nov 2025 854th Frowny 844 72 9ms 3 Jul 2020 854th lifthrasiir 🇰🇷 844 72 10ms 13 Nov 2024 856th snoozingnewt 🇨🇦 843 66 884ms 29 Nov 2025 857th primo-ppcg 🇹🇭 843 67 126ms 27 Mar 2021 857th snoozingnewt 🇨🇦 843 67 123ms 29 Nov 2025 859th villfa 842 75 15ms 30 Nov 2018 859th LostSyntax21 🇬🇧 842 75 13ms 8 Jan 2025 861st Jacob385 842 99 516ms 27 Oct 2025 862nd jslip 841 35 33ms 5 Sep 2018 862nd rak1507 🇬🇧 841 35 34ms 20 Sep 2021 864th Steffan153 🇫🇮 841 99 1ms 28 Jan 2023 864th pardouin 🇫🇷 841 99 1ms 21 Sep 2024 864th sean-niemann 🇺🇸 841 99 1ms 9 May 2025 867th Laar 840 81 137ms 1 Apr 2019 867th alomiF 840 81 136ms 5 Oct 2023 867th brimstonetrader 840 81 115ms 26 Jan 2024 870th annaproxy 840 85 1ms 18 May 2023 871st AdrienHache 🇫🇷 840 103 63ms 7 Jan 2024 871st emgordon154 840 103 61ms 7 Feb 2026 873rd HumanEquivalentUnit 839 59 356ms 10 Oct 2020 874th snoozingnewt 🇨🇦 839 80 1ms 29 Nov 2025 875th MeWhenI 🇻🇦 839 92 458ms 10 Oct 2022 876th Yewzir 🇧🇪 838 79 2ms 22 Dec 2023 876th albanian-laundromat 838 79 2ms 24 Jun 2025 878th edsrzf 🇳🇿 838 97 123ms 4 Mar 2025 879th SirFireball3521 836 45 150ms 22 Mar 2023 880th GrayJoKing 🇦🇺 836 80 107ms 15 Jul 2023 First Prev 801–880 of 3,200 Next Last