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 826th dbut2 🇦🇺 701 121 267ms 15 Jul 2025 827th MeWhenI 🇻🇦 700 69 2ms 10 Sep 2022 827th Yewzir 🇧🇪 700 69 3ms 22 Dec 2023 827th sean-niemann 🇺🇸 700 69 3ms 8 Oct 2024 827th albanian-laundromat 700 69 2ms 24 Jun 2025 831st jared-hughes 699 94 337ms 24 Sep 2025 832nd JunkIce 698 90 125ms 23 Feb 2025 832nd dokutan 698 90 121ms 23 Jul 2025 834th jared-hughes 696 71 9ms 29 Oct 2021 834th stefangimmillaro 696 71 9ms 27 Aug 2022 834th SirFireball3521 696 71 9ms 28 Jan 2023 834th Maznek 696 71 9ms 19 Jun 2023 834th KrausRaus 🇺🇸 696 71 10ms 14 Oct 2025 839th msbranicky 696 74 74ms 14 Aug 2023 840th Steffan153 🇫🇮 696 99 51ms 28 Jan 2023 840th ovs-code 🇩🇪 696 99 48ms 3 Jun 2024 840th roupiq 🇵🇱 696 99 54ms 8 Jun 2024 843rd MeWhenI 🇻🇦 694 133 1,523ms 20 days ago 844th xorraxrax 693 68 11ms 19 Oct 2019 844th NewDefectus 🇮🇱 693 68 10ms 1 Nov 2020 844th ydevor 🇮🇱 693 68 10ms 26 Nov 2020 844th jacklynnepenick 693 68 55ms 17 Aug 2021 844th aposteriorist 🇨🇦 693 68 9ms 6 Feb 2022 844th PowerR0 693 68 14ms 25 Aug 2022 844th SB-945 693 68 17ms 31 Mar 2024 844th Troon 693 68 10ms 11 Feb 2025 852nd sisyphus-ppcg 🇦🇺 692 43 2ms 3 Nov 2020 852nd pandapawskat 692 43 3ms 20 Sep 2021 852nd stefangimmillaro 692 43 2ms 23 Apr 2022 855th o0lit3 🇺🇸 692 50 11ms 19 Apr 2021 855th armin-k1 692 50 9ms 8 Sep 2021 857th Alex-x90 🇺🇸 692 76 2ms 3 Dec 2022 858th anter69 🇭🇺 691 55 1,011ms 10 Mar 2025 859th GrayJoKing 🇦🇺 691 61 115ms 13 Mar 2022 860th btnlq 691 63 4ms 15 Jul 2023 860th SirBogman 🇺🇸 691 63 405ms 15 Jan 2024 860th GolfingSuccess 🇬🇷 691 63 336ms 30 Jan 2024 863rd JDiLenarda 🇫🇷 690 61 1,171ms 9 Oct 2020 864th inventshah 690 70 3ms 9 Sep 2022 865th labster 689 45 100ms 23 Feb 2018 866th jared-hughes 689 100 49ms 20 Jul 2022 867th gnuvince 688 32 9ms 2 Aug 2024 867th codereport 🇨🇦 688 32 3ms 21 Apr 2025 869th marshallward 🇺🇸 688 81 41ms 2 Sep 2022 870th JayXon 🇺🇸 688 102 7ms 15 Mar 2023 871st PatrickStephansen 🇿🇦 686 72 12ms 3 Nov 2020 871st KatieLG 🇬🇧 686 72 11ms 16 Apr 2021 871st neihousaigaai 686 72 10ms 18 Apr 2021 871st two-bad 🇬🇧 686 72 10ms 25 Feb 2024 875th MeWhenI 🇻🇦 686 75 40ms 20 Jun 2022 876th rustyflamingo 685 49 492ms 22 Sep 2022 876th antimon2 🇯🇵 685 49 499ms 15 Oct 2022 876th alemelis 685 49 503ms 1 Mar 2023 876th HPWiz 🇳🇿 685 49 497ms 9 Mar 2023 876th ovs-code 🇩🇪 685 49 483ms 24 Oct 2023 876th MarcMush 🇫🇷 685 49 478ms 5 Jan 2024 876th DialFrost 🇸🇬 685 49 499ms 5 Jan 2024 876th twolfive 685 49 502ms 5 Oct 2024 884th DialFrost 🇸🇬 685 93 40ms 16 Feb 2025 885th galloj 🇨🇿 684 107 1ms 28 Aug 2022 886th j-Ewan 683 40 33ms 22 Feb 2022 887th Espiobest 683 69 17ms 26 Feb 2021 887th cbondurant 683 69 9ms 10 May 2021 887th hellwue 683 69 11ms 8 Feb 2023 887th Vaekor 683 69 12ms 9 Jul 2023 887th jatloe 683 69 70ms 27 Sep 2024 892nd sean-niemann 🇺🇸 683 77 2ms 29 Nov 2022 893rd MeWhenI 🇻🇦 683 101 53ms 8 May 2022 893rd janbehrens 🇩🇪 683 101 51ms 26 Nov 2023 895th retrohun 682 191 10ms 27 Dec 2022 896th sisyphus-ppcg 🇦🇺 681 67 4ms 2 Jul 2023 896th targrik 681 67 4ms 17 Jul 2025 898th m-tkach 🇺🇦 680 64 376ms 30 Jan 2024 899th MeWhenI 🇻🇦 679 62 114ms 11 Nov 2021 900th Irratix 🇳🇱 678 56 1,042ms 25 Mar 2021 First Prev 826–900 of 3,097 Next Last