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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 748th KatieLG 🇬🇧 726 41 2ms 9 Dec 2020 748th msbranicky 726 41 2ms 27 Jul 2023 748th dokutan 726 41 3ms 11 Nov 2023 748th AlephSquirrel 726 41 2ms 27 Jan 2025 755th msbranicky 725 60 394ms 17 Jan 2024 755th JunkIce 725 60 383ms 23 Feb 2025 757th ZakkkkAttackkkk 🇵🇭 725 65 35ms 21 Dec 2021 757th bob-th 725 65 48ms 5 Aug 2022 757th btjones0 725 65 51ms 22 Nov 2022 757th falsidge 725 65 9ms 21 Jun 2023 757th bizy-coder 725 65 10ms 13 Aug 2024 762nd ovs-code 🇩🇪 725 95 28ms 10 Jan 2023 763rd dokutan 724 75 102ms 23 Jul 2025 764th lynn 723 87 121ms 7 Jul 2024 764th emgordon154 723 87 120ms 18 Feb 2025 764th edsrzf 🇳🇿 723 87 123ms 4 Mar 2025 764th DialFrost 🇸🇬 723 87 117ms 4 Apr 2025 764th acotis 723 87 124ms 15 Apr 2025 764th ovs-code 🇩🇪 723 87 122ms 20 Apr 2025 764th sean-niemann 🇺🇸 723 87 121ms 6 Jun 2025 764th kumavale 723 87 124ms 17 Aug 2025 772nd phdphil 722 43 140ms 9 Apr 2018 773rd edsrzf 🇳🇿 722 54 596ms 8 Sep 2025 774th dokutan 722 91 353ms 24 Sep 2025 775th RussellEmerine 721 80 155ms 30 Nov 2019 775th iczelia 🇩🇪 721 80 173ms 20 Oct 2025 777th duckyluuk 🇳🇱 720 73 5ms 16 Dec 2024 778th yzhs 🇩🇪 719 38 35ms 21 Jun 2022 779th retrohun 719 69 7ms 3 Nov 2024 780th Bubbler-4 717 49 69ms 13 Sep 2023 780th ovs-code 🇩🇪 717 49 79ms 13 Sep 2023 782nd GrayJoKing 🇦🇺 717 53 1,018ms 13 Sep 2021 782nd primo-ppcg 🇹🇭 717 53 1,005ms 22 Sep 2021 784th jakzo 716 69 12ms 5 Sep 2021 784th Shanethegamer 🇺🇸 716 69 10ms 25 Apr 2023 786th GrayJoKing 🇦🇺 716 72 45ms 14 Jun 2022 786th primo-ppcg 🇹🇭 716 72 39ms 21 Jun 2022 788th MeWhenI 🇻🇦 716 89 43ms 28 Aug 2024 789th ovs-code 🇩🇪 716 98 7ms 17 Mar 2023 790th Natanaelel 🇸🇪 715 32 43ms 22 Jul 2022 790th SirBogman 🇺🇸 715 32 44ms 10 Sep 2022 792nd duckyluuk 🇳🇱 715 60 2,797ms 26 Oct 2024 793rd DialFrost 🇸🇬 715 76 111ms 26 Dec 2024 793rd snoozingnewt 🇺🇸 715 76 92ms 32 hours ago 795th Attero 🇸🇪 714 66 53ms 25 Sep 2020 795th nstearns96 🇬🇧 714 66 16ms 15 Dec 2022 797th jared-hughes 714 88 121ms 10 Nov 2022 797th kgodara 714 88 125ms 11 Mar 2023 797th snoozingnewt 🇺🇸 714 88 118ms 31 hours ago 800th Yax42 🇫🇷 714 92 339ms 17 days ago 801st namelessiw 713 61 337ms 5 Mar 2024 801st lifthrasiir 🇰🇷 713 61 402ms 2 Dec 2024 801st DialFrost 🇸🇬 713 61 426ms 26 Dec 2024 804th Laar 712 81 177ms 1 Apr 2019 804th alomiF 712 81 171ms 5 Oct 2023 804th brimstonetrader 712 81 134ms 26 Jan 2024 807th MeWhenI 🇻🇦 711 92 5ms 2 Oct 2022 807th snoozingnewt 🇺🇸 711 92 3ms 31 hours ago 809th Alex-x90 🇺🇸 711 97 52ms 4 Dec 2022 809th Herbert00709 🇵🇱 711 97 53ms 8 Jun 2024 811th KenanSi 710 31 3ms 24 Feb 2022 811th ashtraypettingzoo 🇺🇸 710 31 3ms 5 Apr 2023 813th GrayJoKing 🇦🇺 706 70 10ms 20 Sep 2021 813th 0x24a537r9 706 70 12ms 10 Sep 2022 813th TRexOnGit 706 70 10ms 2 May 2025 813th Protothor 706 70 8ms 9 Jul 2025 817th GrayJoKing 🇦🇺 705 72 2ms 9 Apr 2022 818th msbranicky 704 185 10ms 29 Aug 2023 819th Shanethegamer 🇺🇸 703 54 890ms 13 Sep 2021 820th sean-niemann 🇺🇸 703 61 2,794ms 30 Oct 2024 820th jkelly467 703 61 1,958ms 26 days ago 822nd itsjustfreekie 703 67 83ms 20 Sep 2021 822nd Fishron 703 67 71ms 21 Oct 2021 822nd fredrik-bakke 🇳🇴 703 67 98ms 29 Sep 2022 822nd jakobkordez 🇸🇮 703 67 26ms 30 Oct 2022 First Prev 751–825 of 3,110 Next Last