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 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 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 GrayJoKing 🇦🇺 857 70 10ms 20 Sep 2021 751st 0x24a537r9 857 70 11ms 10 Sep 2022 753rd stefangimmillaro 856 66 117ms 15 Jul 2023 754th JDiLenarda 🇫🇷 856 71 1,171ms 9 Oct 2020 755th ovs-code 🇩🇪 855 44 143ms 31 Dec 2023 756th clockworknazo 855 82 4ms 13 Oct 2022 756th ovs-code 🇩🇪 855 82 5ms 7 Feb 2023 756th Lydxn 🇨🇦 855 82 5ms 28 Feb 2023 759th MeWhenI 🇻🇦 855 101 52ms 8 May 2022 759th janbehrens 🇩🇪 855 101 53ms 26 Nov 2023 761st MeWhenI 🇻🇦 854 71 3,008ms 24 Oct 2024 761st sean-niemann 🇺🇸 854 71 2,952ms 30 Oct 2024 761st jkelly467 854 71 1,958ms 13 days ago 764th ScottHamper 854 86 349ms 21 Nov 2021 765th MeWhenI 🇻🇦 853 75 40ms 20 Jun 2022 765th sean-niemann 🇺🇸 853 75 42ms 19 Nov 2024 767th ovs-code 🇩🇪 851 62 412ms 2 Mar 2024 767th CaedenHarper 🇨🇦 851 62 408ms 1 Feb 2025 769th DialFrost 🇸🇬 851 79 2ms 26 Dec 2024 770th RussellEmerine 850 80 155ms 30 Nov 2019 770th iczelia 🇩🇪 850 80 173ms 27 days ago 772nd Yewzir 🇧🇪 850 98 342ms 2 Oct 2025 773rd btnlq 849 68 3ms 16 Jul 2023 773rd ovs-code 🇩🇪 849 68 139ms 3 Aug 2024 775th DialFrost 🇸🇬 849 78 2ms 26 Dec 2024 776th NewDefectus 🇮🇱 849 84 2ms 16 Dec 2021 777th prplz 🇦🇺 847 96 120ms 30 Apr 2022 777th elgan65536 847 96 122ms 11 Nov 2023 779th dokutan 846 102 55ms 14 Apr 2024 780th lynn 845 59 888ms 25 May 2022 780th DialFrost 🇸🇬 845 59 907ms 26 Dec 2024 780th janlelis 845 59 884ms 14 Aug 2025 783rd jared-hughes 845 71 9ms 29 Oct 2021 783rd stefangimmillaro 845 71 9ms 27 Aug 2022 783rd Maznek 845 71 9ms 19 Jun 2023 783rd KrausRaus 🇺🇸 845 71 10ms 14 Oct 2025 787th Frowny 844 72 10ms 3 Jul 2020 787th lifthrasiir 🇰🇷 844 72 9ms 13 Nov 2024 789th primo-ppcg 🇹🇭 843 67 116ms 27 Mar 2021 789th Steffan153 🇫🇮 843 67 115ms 28 Jan 2023 789th edsrzf 🇳🇿 843 67 113ms 23 Jun 2025 792nd villfa 842 75 13ms 30 Nov 2018 792nd LostSyntax21 🇬🇧 842 75 13ms 8 Jan 2025 794th jslip 841 35 36ms 5 Sep 2018 794th rak1507 🇬🇧 841 35 37ms 20 Sep 2021 796th Lydxn 🇨🇦 841 83 1ms 10 Oct 2023 796th ovs-code 🇩🇪 841 83 5ms 10 Oct 2023 798th Steffan153 🇫🇮 841 99 2ms 28 Jan 2023 798th pardouin 🇫🇷 841 99 1ms 21 Sep 2024 798th sean-niemann 🇺🇸 841 99 1ms 9 May 2025 798th Jacob385 841 99 329ms 20 days ago 802nd HumanEquivalentUnit 839 59 288ms 10 Oct 2020 803rd Laar 839 81 177ms 1 Apr 2019 803rd alomiF 839 81 171ms 5 Oct 2023 803rd brimstonetrader 839 81 134ms 26 Jan 2024 806th annaproxy 839 85 2ms 18 May 2023 807th MeWhenI 🇻🇦 839 92 450ms 10 Oct 2022 808th Yewzir 🇧🇪 838 79 3ms 22 Dec 2023 808th albanian-laundromat 838 79 2ms 24 Jun 2025 810th edsrzf 🇳🇿 838 97 123ms 4 Mar 2025 811th AdrienHache 🇫🇷 838 103 52ms 7 Jan 2024 812th SirFireball3521 836 45 145ms 22 Mar 2023 813th GrayJoKing 🇦🇺 836 80 101ms 15 Jul 2023 814th Shanethegamer 🇺🇸 833 30 3ms 13 Jan 2022 815th PatrickStephansen 🇿🇦 833 72 11ms 3 Nov 2020 815th KatieLG 🇬🇧 833 72 9ms 16 Apr 2021 815th neihousaigaai 833 72 10ms 18 Apr 2021 815th two-bad 🇬🇧 833 72 13ms 25 Feb 2024 819th mogron 832 73 9ms 13 Dec 2019 819th FlorianCassayre 🇫🇷 832 73 12ms 30 Oct 2022 819th StefanHabel 🇨🇦 832 73 10ms 11 Dec 2022 819th DrakeSeteraO 832 73 9ms 22 days ago 823rd duckyluuk 🇳🇱 831 73 5ms 16 Dec 2024 824th acacopardo 831 76 13ms 14 Nov 2017 824th MeWhenI 🇻🇦 831 76 13ms 15 Sep 2021 First Prev 751–825 of 3,100 Next Last