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Happy Numbers in all languages in chars. 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 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 Continued Fractions 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 Taxicab 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 Continued Fractions 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 Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 823rd jakobkordez 🇸🇮 703 67 26ms 30 Oct 2022 823rd jmerle 🇳🇱 703 67 81ms 16 Feb 2023 828th jared-hughes 703 82 158ms 11 Sep 2023 829th m-tkach 🇺🇦 703 98 54ms 9 Mar 2023 829th annaproxy 703 98 52ms 22 Oct 2023 831st Yewzir 🇧🇪 702 62 395ms 4 Feb 2024 831st ovs-code 🇩🇪 702 62 412ms 2 Mar 2024 831st KatieLG 🇬🇧 702 62 424ms 28 Oct 2024 834th jmerle 🇳🇱 702 100 7ms 4 Jul 2023 835th saito-ta 🇯🇵 701 75 6ms 22 Jun 2022 835th inventshah 701 75 2ms 25 Jan 2023 835th Yewzir 🇧🇪 701 75 2ms 22 Dec 2023 835th KasperKivimaeki 🇫🇮 701 75 2ms 5 Jan 2025 839th dbut2 🇦🇺 701 121 267ms 15 Jul 2025 840th MeWhenI 🇻🇦 700 69 2ms 10 Sep 2022 840th Yewzir 🇧🇪 700 69 3ms 22 Dec 2023 840th sean-niemann 🇺🇸 700 69 3ms 8 Oct 2024 840th albanian-laundromat 700 69 2ms 24 Jun 2025 844th jared-hughes 699 94 337ms 24 Sep 2025 845th JunkIce 698 90 125ms 23 Feb 2025 845th dokutan 698 90 121ms 23 Jul 2025 847th snoozingnewt 🇺🇸 697 89 375ms 45 hours ago 848th jared-hughes 696 71 9ms 29 Oct 2021 848th stefangimmillaro 696 71 9ms 27 Aug 2022 848th SirFireball3521 696 71 9ms 28 Jan 2023 848th Maznek 696 71 9ms 19 Jun 2023 848th KrausRaus 🇺🇸 696 71 10ms 14 Oct 2025 848th snoozingnewt 🇺🇸 696 71 9ms 45 hours ago 854th msbranicky 696 74 74ms 14 Aug 2023 855th Steffan153 🇫🇮 696 99 51ms 28 Jan 2023 855th ovs-code 🇩🇪 696 99 48ms 3 Jun 2024 855th roupiq 🇵🇱 696 99 54ms 8 Jun 2024 858th MeWhenI 🇻🇦 694 133 1,523ms 22 days ago 859th xorraxrax 693 68 11ms 19 Oct 2019 859th NewDefectus 🇮🇱 693 68 10ms 1 Nov 2020 859th ydevor 🇮🇱 693 68 10ms 26 Nov 2020 859th jacklynnepenick 693 68 55ms 17 Aug 2021 859th aposteriorist 🇨🇦 693 68 9ms 6 Feb 2022 859th PowerR0 693 68 14ms 25 Aug 2022 859th SB-945 693 68 17ms 31 Mar 2024 859th Troon 693 68 10ms 11 Feb 2025 867th albanian-laundromat 693 87 104ms 47 hours ago 868th sisyphus-ppcg 🇦🇺 692 43 2ms 3 Nov 2020 868th pandapawskat 692 43 3ms 20 Sep 2021 868th stefangimmillaro 692 43 2ms 23 Apr 2022 871st o0lit3 🇺🇸 692 50 11ms 19 Apr 2021 871st armin-k1 692 50 9ms 8 Sep 2021 873rd Alex-x90 🇺🇸 692 76 2ms 3 Dec 2022 874th snoozingnewt 🇺🇸 692 95 335ms 45 hours ago 875th anter69 🇭🇺 691 55 1,011ms 10 Mar 2025 876th GrayJoKing 🇦🇺 691 61 115ms 13 Mar 2022 877th btnlq 691 63 4ms 15 Jul 2023 877th SirBogman 🇺🇸 691 63 405ms 15 Jan 2024 877th GolfingSuccess 🇬🇷 691 63 336ms 30 Jan 2024 880th JDiLenarda 🇫🇷 690 61 1,171ms 9 Oct 2020 881st inventshah 690 70 3ms 9 Sep 2022 882nd labster 689 45 100ms 23 Feb 2018 883rd jared-hughes 689 100 49ms 20 Jul 2022 884th gnuvince 688 32 9ms 2 Aug 2024 884th codereport 🇨🇦 688 32 3ms 21 Apr 2025 886th marshallward 🇺🇸 688 81 41ms 2 Sep 2022 887th JayXon 🇺🇸 688 102 7ms 15 Mar 2023 888th MeWhenI 🇻🇦 687 75 40ms 20 Jun 2022 889th PatrickStephansen 🇿🇦 686 72 12ms 3 Nov 2020 889th KatieLG 🇬🇧 686 72 11ms 16 Apr 2021 889th neihousaigaai 686 72 10ms 18 Apr 2021 889th two-bad 🇬🇧 686 72 10ms 25 Feb 2024 893rd rustyflamingo 685 49 492ms 22 Sep 2022 893rd antimon2 🇯🇵 685 49 499ms 15 Oct 2022 893rd alemelis 685 49 503ms 1 Mar 2023 893rd HPWiz 🇳🇿 685 49 497ms 9 Mar 2023 893rd ovs-code 🇩🇪 685 49 483ms 24 Oct 2023 893rd MarcMush 🇫🇷 685 49 478ms 5 Jan 2024 893rd DialFrost 🇸🇬 685 49 499ms 5 Jan 2024 893rd twolfive 685 49 502ms 5 Oct 2024 First Prev 826–900 of 3,110 Next Last