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 Calendar 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 Multitap Input 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 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 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar 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 Multitap Input 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 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 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 801st RussellEmerine 721 80 138ms 30 Nov 2019 801st iczelia 🇩🇪 721 80 159ms 20 Oct 2025 803rd duckyluuk 🇳🇱 720 73 4ms 16 Dec 2024 804th yzhs 🇩🇪 719 38 35ms 21 Jun 2022 805th retrohun 719 69 7ms 3 Nov 2024 806th GrayJoKing 🇦🇺 717 53 1,296ms 13 Sep 2021 806th primo-ppcg 🇹🇭 717 53 1,295ms 22 Sep 2021 808th jakzo 716 69 12ms 5 Sep 2021 808th Shanethegamer 🇺🇸 716 69 10ms 25 Apr 2023 810th GrayJoKing 🇦🇺 716 72 36ms 14 Jun 2022 810th primo-ppcg 🇹🇭 716 72 37ms 21 Jun 2022 812th MeWhenI 🇻🇦 716 89 38ms 28 Aug 2024 813th ovs-code 🇩🇪 716 98 7ms 17 Mar 2023 814th Natanaelel 🇸🇪 715 32 43ms 22 Jul 2022 814th SirBogman 🇺🇸 715 32 43ms 10 Sep 2022 816th duckyluuk 🇳🇱 715 60 2,196ms 26 Oct 2024 817th DialFrost 🇸🇬 715 76 136ms 26 Dec 2024 817th snoozingnewt 🇨🇦 715 76 112ms 29 Nov 2025 819th Yax42 🇫🇷 715 92 514ms 12 Nov 2025 820th namelessiw 714 61 419ms 5 Mar 2024 820th lifthrasiir 🇰🇷 714 61 411ms 2 Dec 2024 820th DialFrost 🇸🇬 714 61 412ms 26 Dec 2024 823rd Attero 🇸🇪 714 66 51ms 25 Sep 2020 823rd nstearns96 🇬🇧 714 66 16ms 15 Dec 2022 825th jared-hughes 714 88 115ms 10 Nov 2022 825th kgodara 714 88 130ms 11 Mar 2023 825th snoozingnewt 🇨🇦 714 88 113ms 29 Nov 2025 828th emgordon154 713 87 452ms 2 days ago 829th Laar 712 81 137ms 1 Apr 2019 829th alomiF 712 81 136ms 5 Oct 2023 829th brimstonetrader 712 81 115ms 26 Jan 2024 832nd MeWhenI 🇻🇦 711 92 6ms 2 Oct 2022 833rd Alex-x90 🇺🇸 711 97 58ms 4 Dec 2022 833rd Herbert00709 🇵🇱 711 97 52ms 8 Jun 2024 835th KenanSi 710 31 3ms 24 Feb 2022 835th ashtraypettingzoo 🇺🇸 710 31 3ms 5 Apr 2023 837th GrayJoKing 🇦🇺 706 70 12ms 20 Sep 2021 837th 0x24a537r9 706 70 12ms 10 Sep 2022 837th TRexOnGit 706 70 9ms 2 May 2025 837th Protothor 706 70 10ms 9 Jul 2025 841st GrayJoKing 🇦🇺 704 72 1ms 9 Apr 2022 842nd jared-hughes 704 82 116ms 11 Sep 2023 843rd m-tkach 🇺🇦 704 98 59ms 9 Mar 2023 843rd annaproxy 704 98 57ms 22 Oct 2023 845th msbranicky 704 185 10ms 29 Aug 2023 846th Shanethegamer 🇺🇸 703 54 1,255ms 13 Sep 2021 847th sean-niemann 🇺🇸 703 61 2,143ms 30 Oct 2024 847th jkelly467 703 61 2,316ms 3 Nov 2025 849th itsjustfreekie 703 67 75ms 20 Sep 2021 849th Fishron 703 67 65ms 21 Oct 2021 849th fredrik-bakke 🇳🇴 703 67 73ms 29 Sep 2022 849th jakobkordez 🇸🇮 703 67 17ms 30 Oct 2022 849th jmerle 🇳🇱 703 67 75ms 16 Feb 2023 854th Yewzir 🇧🇪 702 62 452ms 4 Feb 2024 854th ovs-code 🇩🇪 702 62 415ms 2 Mar 2024 854th KatieLG 🇬🇧 702 62 411ms 28 Oct 2024 857th jmerle 🇳🇱 702 100 7ms 4 Jul 2023 858th dbut2 🇦🇺 702 121 280ms 15 Jul 2025 859th saito-ta 🇯🇵 701 75 6ms 22 Jun 2022 859th inventshah 701 75 2ms 25 Jan 2023 859th Yewzir 🇧🇪 701 75 2ms 22 Dec 2023 859th KasperKivimaeki 🇫🇮 701 75 2ms 5 Jan 2025 863rd MeWhenI 🇻🇦 700 69 2ms 10 Sep 2022 863rd Yewzir 🇧🇪 700 69 2ms 22 Dec 2023 863rd sean-niemann 🇺🇸 700 69 2ms 8 Oct 2024 863rd albanian-laundromat 700 69 2ms 24 Jun 2025 867th jared-hughes 700 94 494ms 24 Sep 2025 868th Bubbler-4 699 49 65ms 13 Sep 2023 868th ovs-code 🇩🇪 699 49 63ms 13 Sep 2023 870th JunkIce 698 90 118ms 23 Feb 2025 870th dokutan 698 90 116ms 23 Jul 2025 872nd snoozingnewt 🇨🇦 697 89 365ms 29 Nov 2025 873rd Steffan153 🇫🇮 697 99 54ms 28 Jan 2023 873rd ovs-code 🇩🇪 697 99 56ms 3 Jun 2024 873rd roupiq 🇵🇱 697 99 57ms 8 Jun 2024 876th jared-hughes 696 71 9ms 29 Oct 2021 876th stefangimmillaro 696 71 14ms 27 Aug 2022 876th SirFireball3521 696 71 9ms 28 Jan 2023 876th Maznek 696 71 10ms 19 Jun 2023 876th snoozingnewt 🇨🇦 696 71 9ms 29 Nov 2025 First Prev 801–880 of 3,155 Next Last