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 746th bizy-coder 725 65 10ms 13 Aug 2024 752nd ovs-code 🇩🇪 725 95 28ms 10 Jan 2023 753rd dokutan 724 75 102ms 23 Jul 2025 754th lynn 723 87 121ms 7 Jul 2024 754th emgordon154 723 87 120ms 18 Feb 2025 754th edsrzf 🇳🇿 723 87 123ms 4 Mar 2025 754th DialFrost 🇸🇬 723 87 117ms 4 Apr 2025 754th acotis 723 87 124ms 15 Apr 2025 754th ovs-code 🇩🇪 723 87 122ms 20 Apr 2025 754th sean-niemann 🇺🇸 723 87 121ms 6 Jun 2025 754th kumavale 723 87 124ms 17 Aug 2025 762nd phdphil 722 43 140ms 9 Apr 2018 763rd edsrzf 🇳🇿 722 54 596ms 8 Sep 2025 764th dokutan 722 91 353ms 24 Sep 2025 765th RussellEmerine 721 80 155ms 30 Nov 2019 765th iczelia 🇩🇪 721 80 173ms 20 Oct 2025 767th duckyluuk 🇳🇱 720 73 5ms 16 Dec 2024 768th yzhs 🇩🇪 719 38 35ms 21 Jun 2022 769th retrohun 719 69 7ms 3 Nov 2024 770th Bubbler-4 717 49 69ms 13 Sep 2023 770th ovs-code 🇩🇪 717 49 79ms 13 Sep 2023 772nd GrayJoKing 🇦🇺 717 53 1,018ms 13 Sep 2021 772nd primo-ppcg 🇹🇭 717 53 1,005ms 22 Sep 2021 774th jakzo 716 69 14ms 5 Sep 2021 774th Shanethegamer 🇺🇸 716 69 10ms 25 Apr 2023 776th MeWhenI 🇻🇦 716 89 43ms 28 Aug 2024 777th ovs-code 🇩🇪 716 98 7ms 17 Mar 2023 778th Natanaelel 🇸🇪 715 32 43ms 22 Jul 2022 778th SirBogman 🇺🇸 715 32 44ms 10 Sep 2022 780th duckyluuk 🇳🇱 715 60 2,802ms 26 Oct 2024 781st GrayJoKing 🇦🇺 715 72 45ms 14 Jun 2022 781st primo-ppcg 🇹🇭 715 72 39ms 21 Jun 2022 783rd DialFrost 🇸🇬 715 76 112ms 26 Dec 2024 784th Attero 🇸🇪 714 66 53ms 25 Sep 2020 784th nstearns96 🇬🇧 714 66 16ms 15 Dec 2022 786th jared-hughes 714 88 121ms 10 Nov 2022 786th kgodara 714 88 125ms 11 Mar 2023 788th Yax42 🇫🇷 714 92 339ms 14 days ago 789th namelessiw 713 61 337ms 5 Mar 2024 789th lifthrasiir 🇰🇷 713 61 402ms 2 Dec 2024 789th DialFrost 🇸🇬 713 61 426ms 26 Dec 2024 792nd Laar 712 81 177ms 1 Apr 2019 792nd alomiF 712 81 171ms 5 Oct 2023 792nd brimstonetrader 712 81 134ms 26 Jan 2024 795th MeWhenI 🇻🇦 711 92 5ms 2 Oct 2022 796th Alex-x90 🇺🇸 711 97 52ms 4 Dec 2022 796th Herbert00709 🇵🇱 711 97 53ms 8 Jun 2024 798th KenanSi 710 31 3ms 24 Feb 2022 798th ashtraypettingzoo 🇺🇸 710 31 3ms 5 Apr 2023 800th GrayJoKing 🇦🇺 706 70 11ms 20 Sep 2021 800th 0x24a537r9 706 70 12ms 10 Sep 2022 800th TRexOnGit 706 70 10ms 2 May 2025 800th Protothor 706 70 9ms 9 Jul 2025 804th GrayJoKing 🇦🇺 705 72 2ms 9 Apr 2022 805th msbranicky 704 185 10ms 29 Aug 2023 806th Shanethegamer 🇺🇸 703 54 890ms 13 Sep 2021 807th sean-niemann 🇺🇸 703 61 2,794ms 30 Oct 2024 807th jkelly467 703 61 1,958ms 23 days ago 809th itsjustfreekie 703 67 83ms 20 Sep 2021 809th Fishron 703 67 71ms 21 Oct 2021 809th fredrik-bakke 🇳🇴 703 67 98ms 29 Sep 2022 809th jakobkordez 🇸🇮 703 67 26ms 30 Oct 2022 809th jmerle 🇳🇱 703 67 81ms 16 Feb 2023 814th jared-hughes 703 82 158ms 11 Sep 2023 815th m-tkach 🇺🇦 703 98 56ms 9 Mar 2023 815th annaproxy 703 98 52ms 22 Oct 2023 817th Yewzir 🇧🇪 702 62 395ms 4 Feb 2024 817th ovs-code 🇩🇪 702 62 412ms 2 Mar 2024 817th KatieLG 🇬🇧 702 62 424ms 28 Oct 2024 820th jmerle 🇳🇱 702 100 7ms 4 Jul 2023 821st saito-ta 🇯🇵 701 75 6ms 22 Jun 2022 821st inventshah 701 75 2ms 25 Jan 2023 821st Yewzir 🇧🇪 701 75 2ms 22 Dec 2023 821st KasperKivimaeki 🇫🇮 701 75 2ms 5 Jan 2025 825th dbut2 🇦🇺 701 121 267ms 15 Jul 2025 First Prev 751–825 of 3,096 Next Last