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 ovs-code 🇩🇪 855 44 149ms 31 Dec 2023 752nd MeWhenI 🇻🇦 855 101 52ms 8 May 2022 752nd janbehrens 🇩🇪 855 101 53ms 26 Nov 2023 754th MeWhenI 🇻🇦 854 71 3,008ms 24 Oct 2024 754th sean-niemann 🇺🇸 854 71 2,952ms 30 Oct 2024 754th jkelly467 854 71 1,958ms 9 days ago 757th clockworknazo 854 82 5ms 13 Oct 2022 757th ovs-code 🇩🇪 854 82 6ms 7 Feb 2023 757th Lydxn 🇨🇦 854 82 6ms 28 Feb 2023 760th ScottHamper 854 86 349ms 21 Nov 2021 761st MeWhenI 🇻🇦 853 75 40ms 20 Jun 2022 761st sean-niemann 🇺🇸 853 75 42ms 19 Nov 2024 763rd ovs-code 🇩🇪 851 62 412ms 2 Mar 2024 763rd CaedenHarper 🇨🇦 851 62 408ms 1 Feb 2025 765th DialFrost 🇸🇬 851 79 2ms 26 Dec 2024 766th RussellEmerine 850 80 155ms 30 Nov 2019 766th iczelia 🇩🇪 850 80 173ms 22 days ago 768th DialFrost 🇸🇬 850 98 342ms 24 Sep 2025 768th Yewzir 🇧🇪 850 98 342ms 2 Oct 2025 770th btnlq 849 68 3ms 16 Jul 2023 770th ovs-code 🇩🇪 849 68 139ms 3 Aug 2024 772nd DialFrost 🇸🇬 849 78 2ms 26 Dec 2024 773rd NewDefectus 🇮🇱 849 84 2ms 16 Dec 2021 774th prplz 🇦🇺 847 96 120ms 30 Apr 2022 774th elgan65536 847 96 123ms 11 Nov 2023 776th dokutan 846 102 55ms 14 Apr 2024 777th lynn 845 59 888ms 25 May 2022 777th DialFrost 🇸🇬 845 59 907ms 26 Dec 2024 777th janlelis 845 59 884ms 14 Aug 2025 780th jared-hughes 845 71 9ms 29 Oct 2021 780th stefangimmillaro 845 71 9ms 27 Aug 2022 780th Maznek 845 71 9ms 19 Jun 2023 780th KrausRaus 🇺🇸 845 71 10ms 14 Oct 2025 784th Frowny 844 72 13ms 3 Jul 2020 784th lifthrasiir 🇰🇷 844 72 10ms 13 Nov 2024 786th primo-ppcg 🇹🇭 843 67 116ms 27 Mar 2021 786th Steffan153 🇫🇮 843 67 115ms 28 Jan 2023 786th edsrzf 🇳🇿 843 67 113ms 23 Jun 2025 789th villfa 842 75 13ms 30 Nov 2018 789th LostSyntax21 🇬🇧 842 75 13ms 8 Jan 2025 791st jslip 841 35 36ms 5 Sep 2018 791st rak1507 🇬🇧 841 35 37ms 20 Sep 2021 793rd Steffan153 🇫🇮 841 99 2ms 28 Jan 2023 793rd pardouin 🇫🇷 841 99 1ms 21 Sep 2024 793rd sean-niemann 🇺🇸 841 99 1ms 9 May 2025 793rd Jacob385 841 99 329ms 15 days ago 797th Lydxn 🇨🇦 840 83 1ms 10 Oct 2023 797th ovs-code 🇩🇪 840 83 5ms 10 Oct 2023 799th HumanEquivalentUnit 839 59 288ms 10 Oct 2020 800th Laar 839 81 177ms 1 Apr 2019 800th alomiF 839 81 171ms 5 Oct 2023 800th brimstonetrader 839 81 134ms 26 Jan 2024 803rd annaproxy 839 85 2ms 18 May 2023 804th MeWhenI 🇻🇦 839 92 450ms 10 Oct 2022 805th Yewzir 🇧🇪 838 79 3ms 22 Dec 2023 805th albanian-laundromat 838 79 2ms 24 Jun 2025 807th edsrzf 🇳🇿 838 97 123ms 4 Mar 2025 808th AdrienHache 🇫🇷 838 103 52ms 7 Jan 2024 809th SirFireball3521 836 45 147ms 22 Mar 2023 810th GrayJoKing 🇦🇺 836 80 101ms 15 Jul 2023 811th Shanethegamer 🇺🇸 833 30 3ms 13 Jan 2022 812th PatrickStephansen 🇿🇦 833 72 11ms 3 Nov 2020 812th KatieLG 🇬🇧 833 72 9ms 16 Apr 2021 812th neihousaigaai 833 72 10ms 18 Apr 2021 812th two-bad 🇬🇧 833 72 13ms 25 Feb 2024 816th mogron 832 73 12ms 13 Dec 2019 816th FlorianCassayre 🇫🇷 832 73 12ms 30 Oct 2022 816th StefanHabel 🇨🇦 832 73 10ms 11 Dec 2022 816th DrakeSeteraO 832 73 9ms 18 days ago 820th duckyluuk 🇳🇱 831 73 5ms 16 Dec 2024 821st acacopardo 831 76 13ms 14 Nov 2017 821st MeWhenI 🇻🇦 831 76 13ms 15 Sep 2021 821st DaCuteRaccoon 831 76 13ms 30 Nov 2022 824th marshallward 🇺🇸 831 81 41ms 2 Sep 2022 825th djeedjay 🇳🇱 830 86 2ms 26 Oct 2020 First Prev 751–825 of 3,094 Next Last