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 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 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 MeWhenI 🇻🇦 855 101 52ms 8 May 2022 751st janbehrens 🇩🇪 855 101 53ms 26 Nov 2023 753rd MeWhenI 🇻🇦 854 71 3,008ms 24 Oct 2024 753rd sean-niemann 🇺🇸 854 71 2,952ms 30 Oct 2024 753rd jkelly467 854 71 1,958ms 8 days ago 756th clockworknazo 854 82 5ms 13 Oct 2022 756th ovs-code 🇩🇪 854 82 6ms 7 Feb 2023 756th Lydxn 🇨🇦 854 82 6ms 28 Feb 2023 759th ScottHamper 854 86 349ms 21 Nov 2021 760th MeWhenI 🇻🇦 853 75 40ms 20 Jun 2022 760th sean-niemann 🇺🇸 853 75 42ms 19 Nov 2024 762nd ovs-code 🇩🇪 851 62 412ms 2 Mar 2024 762nd CaedenHarper 🇨🇦 851 62 408ms 1 Feb 2025 764th DialFrost 🇸🇬 851 79 2ms 26 Dec 2024 765th RussellEmerine 850 80 155ms 30 Nov 2019 765th iczelia 🇩🇪 850 80 173ms 22 days ago 767th btnlq 849 68 3ms 16 Jul 2023 767th ovs-code 🇩🇪 849 68 139ms 3 Aug 2024 769th DialFrost 🇸🇬 849 78 2ms 26 Dec 2024 770th NewDefectus 🇮🇱 849 84 2ms 16 Dec 2021 771st DialFrost 🇸🇬 849 98 342ms 24 Sep 2025 771st Yewzir 🇧🇪 849 98 342ms 2 Oct 2025 773rd prplz 🇦🇺 847 96 121ms 30 Apr 2022 773rd elgan65536 847 96 125ms 11 Nov 2023 775th dokutan 846 102 55ms 14 Apr 2024 776th lynn 845 59 888ms 25 May 2022 776th DialFrost 🇸🇬 845 59 907ms 26 Dec 2024 776th janlelis 845 59 884ms 14 Aug 2025 779th jared-hughes 845 71 9ms 29 Oct 2021 779th stefangimmillaro 845 71 9ms 27 Aug 2022 779th Maznek 845 71 9ms 19 Jun 2023 779th KrausRaus 🇺🇸 845 71 10ms 14 Oct 2025 783rd Frowny 844 72 13ms 3 Jul 2020 783rd lifthrasiir 🇰🇷 844 72 10ms 13 Nov 2024 785th primo-ppcg 🇹🇭 843 67 116ms 27 Mar 2021 785th Steffan153 🇫🇮 843 67 115ms 28 Jan 2023 785th edsrzf 🇳🇿 843 67 113ms 23 Jun 2025 788th Lydxn 🇨🇦 843 83 2ms 10 Oct 2023 788th ovs-code 🇩🇪 843 83 5ms 10 Oct 2023 790th villfa 842 75 13ms 30 Nov 2018 790th LostSyntax21 🇬🇧 842 75 13ms 8 Jan 2025 792nd jslip 841 35 36ms 5 Sep 2018 792nd rak1507 🇬🇧 841 35 37ms 20 Sep 2021 794th Steffan153 🇫🇮 841 99 2ms 28 Jan 2023 794th pardouin 🇫🇷 841 99 1ms 21 Sep 2024 794th sean-niemann 🇺🇸 841 99 1ms 9 May 2025 794th Jacob385 841 99 329ms 14 days ago 798th HumanEquivalentUnit 839 59 288ms 10 Oct 2020 799th Laar 839 81 177ms 1 Apr 2019 799th alomiF 839 81 171ms 5 Oct 2023 799th brimstonetrader 839 81 134ms 26 Jan 2024 802nd annaproxy 839 85 2ms 18 May 2023 803rd MeWhenI 🇻🇦 839 92 450ms 10 Oct 2022 804th Yewzir 🇧🇪 838 79 3ms 22 Dec 2023 804th albanian-laundromat 838 79 2ms 24 Jun 2025 806th edsrzf 🇳🇿 838 97 120ms 4 Mar 2025 807th AdrienHache 🇫🇷 838 103 52ms 7 Jan 2024 808th SirFireball3521 836 45 147ms 22 Mar 2023 809th GrayJoKing 🇦🇺 836 80 101ms 15 Jul 2023 810th Shanethegamer 🇺🇸 833 30 3ms 13 Jan 2022 811th PatrickStephansen 🇿🇦 833 72 11ms 3 Nov 2020 811th KatieLG 🇬🇧 833 72 9ms 16 Apr 2021 811th neihousaigaai 833 72 10ms 18 Apr 2021 811th two-bad 🇬🇧 833 72 13ms 25 Feb 2024 815th mogron 832 73 12ms 13 Dec 2019 815th FlorianCassayre 🇫🇷 832 73 12ms 30 Oct 2022 815th StefanHabel 🇨🇦 832 73 10ms 11 Dec 2022 815th DrakeSeteraO 832 73 9ms 17 days ago 819th duckyluuk 🇳🇱 831 73 5ms 16 Dec 2024 820th acacopardo 831 76 13ms 14 Nov 2017 820th MeWhenI 🇻🇦 831 76 13ms 15 Sep 2021 820th DaCuteRaccoon 831 76 13ms 30 Nov 2022 823rd marshallward 🇺🇸 831 81 41ms 2 Sep 2022 824th djeedjay 🇳🇱 830 86 2ms 26 Oct 2020 824th Yewzir 🇧🇪 830 86 2ms 22 Dec 2023 First Prev 751–825 of 3,094 Next Last