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 Tower of Hanoi 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 Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers 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 Tower of Hanoi 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 Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 825th 0x24a537r9 706 70 12ms 10 Sep 2022 825th TRexOnGit 706 70 9ms 2 May 2025 825th Protothor 706 70 9ms 9 Jul 2025 829th GrayJoKing 🇦🇺 705 72 1ms 9 Apr 2022 830th msbranicky 704 185 10ms 29 Aug 2023 831st Shanethegamer 🇺🇸 703 54 890ms 13 Sep 2021 832nd sean-niemann 🇺🇸 703 61 2,726ms 30 Oct 2024 832nd jkelly467 703 61 2,427ms 3 Nov 2025 834th itsjustfreekie 703 67 75ms 20 Sep 2021 834th Fishron 703 67 66ms 21 Oct 2021 834th fredrik-bakke 🇳🇴 703 67 72ms 29 Sep 2022 834th jakobkordez 🇸🇮 703 67 17ms 30 Oct 2022 834th jmerle 🇳🇱 703 67 74ms 16 Feb 2023 839th jared-hughes 703 82 116ms 11 Sep 2023 840th m-tkach 🇺🇦 703 98 54ms 9 Mar 2023 840th annaproxy 703 98 54ms 22 Oct 2023 842nd Yewzir 🇧🇪 702 62 349ms 4 Feb 2024 842nd ovs-code 🇩🇪 702 62 358ms 2 Mar 2024 842nd KatieLG 🇬🇧 702 62 372ms 28 Oct 2024 845th jmerle 🇳🇱 702 100 7ms 4 Jul 2023 846th saito-ta 🇯🇵 701 75 6ms 22 Jun 2022 846th inventshah 701 75 2ms 25 Jan 2023 846th Yewzir 🇧🇪 701 75 2ms 22 Dec 2023 846th KasperKivimaeki 🇫🇮 701 75 2ms 5 Jan 2025 850th dbut2 🇦🇺 701 121 274ms 15 Jul 2025 851st MeWhenI 🇻🇦 700 69 2ms 10 Sep 2022 851st Yewzir 🇧🇪 700 69 2ms 22 Dec 2023 851st sean-niemann 🇺🇸 700 69 2ms 8 Oct 2024 851st albanian-laundromat 700 69 2ms 24 Jun 2025 855th albanian-laundromat 700 87 107ms 10 days ago 856th jared-hughes 700 94 444ms 24 Sep 2025 857th JunkIce 698 90 138ms 23 Feb 2025 857th dokutan 698 90 135ms 23 Jul 2025 859th snoozingnewt 🇨🇦 697 89 375ms 10 days ago 860th jared-hughes 696 71 9ms 29 Oct 2021 860th stefangimmillaro 696 71 9ms 27 Aug 2022 860th SirFireball3521 696 71 9ms 28 Jan 2023 860th Maznek 696 71 9ms 19 Jun 2023 860th KrausRaus 🇺🇸 696 71 9ms 14 Oct 2025 860th snoozingnewt 🇨🇦 696 71 9ms 10 days ago 866th msbranicky 696 74 78ms 14 Aug 2023 867th Steffan153 🇫🇮 696 99 51ms 28 Jan 2023 867th ovs-code 🇩🇪 696 99 51ms 3 Jun 2024 867th roupiq 🇵🇱 696 99 52ms 8 Jun 2024 870th MeWhenI 🇻🇦 694 133 1,642ms 7 Nov 2025 871st xorraxrax 693 68 9ms 19 Oct 2019 871st NewDefectus 🇮🇱 693 68 10ms 1 Nov 2020 871st ydevor 🇮🇱 693 68 9ms 26 Nov 2020 871st jacklynnepenick 693 68 42ms 17 Aug 2021 871st aposteriorist 🇨🇦 693 68 9ms 6 Feb 2022 871st PowerR0 693 68 9ms 25 Aug 2022 871st SB-945 693 68 16ms 31 Mar 2024 871st Troon 693 68 9ms 11 Feb 2025 879th sisyphus-ppcg 🇦🇺 692 43 2ms 3 Nov 2020 879th pandapawskat 692 43 1ms 20 Sep 2021 879th stefangimmillaro 692 43 2ms 23 Apr 2022 882nd o0lit3 🇺🇸 692 50 10ms 19 Apr 2021 882nd armin-k1 692 50 8ms 8 Sep 2021 884th Alex-x90 🇺🇸 692 76 2ms 3 Dec 2022 885th snoozingnewt 🇨🇦 692 95 356ms 10 days ago 886th anter69 🇭🇺 691 55 1,011ms 10 Mar 2025 887th GrayJoKing 🇦🇺 691 61 117ms 13 Mar 2022 888th btnlq 691 63 3ms 15 Jul 2023 888th SirBogman 🇺🇸 691 63 335ms 15 Jan 2024 888th GolfingSuccess 🇬🇷 691 63 375ms 30 Jan 2024 891st JDiLenarda 🇫🇷 690 61 1,171ms 9 Oct 2020 892nd inventshah 690 70 2ms 9 Sep 2022 893rd labster 689 45 110ms 23 Feb 2018 893rd snoozingnewt 🇨🇦 689 45 103ms 8 days ago 895th jared-hughes 689 100 51ms 20 Jul 2022 896th gnuvince 688 32 10ms 2 Aug 2024 896th codereport 🇨🇦 688 32 3ms 21 Apr 2025 898th marshallward 🇺🇸 688 81 39ms 2 Sep 2022 899th JayXon 🇺🇸 688 102 7ms 15 Mar 2023 900th MeWhenI 🇻🇦 687 75 35ms 20 Jun 2022 First Prev 826–900 of 3,122 Next Last