Happy Numbers in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 372nd Steffan153 🇫🇮 918 72 19 Aug 2024 377th bforte 918 74 9 Dec 2018 377th annaproxy 918 74 12 Jan 2022 377th rak1507 🇬🇧 918 74 23 Feb 2022 377th snoozingnewt 🇺🇸 918 74 1 Sep 2024 377th Natanaelel 🇸🇪 918 74 31 May 2025 382nd Steffan153 🇫🇮 917 63 22 Aug 2024 382nd sean-niemann 🇺🇸 917 63 22 Aug 2024 382nd JayXon 🇺🇸 917 63 23 Aug 2024 382nd lukegustafson 🇺🇸 917 63 12 Sep 2024 382nd emplv 🇱🇻 917 63 17 Jul 2025 387th Steffan153 🇫🇮 917 64 11 Dec 2023 387th Yewzir 🇧🇪 917 64 14 Dec 2023 387th Lydxn 🇨🇦 917 64 20 Dec 2023 387th dokutan 917 64 19 May 2024 387th emgordon154 917 64 5 Dec 2024 387th edsrzf 🇳🇿 917 64 21 Jan 2025 387th sean-niemann 🇺🇸 917 64 19 Apr 2025 387th kg583 🇺🇸 917 64 30 Jul 2025 395th inventshah 917 66 24 Oct 2024 395th btnlq 917 66 26 Oct 2024 395th stefangimmillaro 917 66 29 Oct 2024 395th pardouin 🇫🇷 917 66 31 Oct 2024 395th JayXon 🇺🇸 917 66 7 Nov 2024 395th emgordon154 917 66 20 Nov 2024 401st primo-ppcg 🇹🇭 917 80 21 Nov 2021 401st prplz 🇦🇺 917 80 21 Nov 2021 401st annaproxy 917 80 5 May 2022 401st tomtheisen 🇺🇸 917 80 17 Jan 2023 401st Steffan153 🇫🇮 917 80 28 Jan 2023 401st AdrienHache 🇫🇷 917 80 30 May 2023 401st MeWhenI 🇻🇦 917 80 26 Jul 2023 401st DialFrost 🇸🇬 917 80 26 Dec 2024 401st sean-niemann 🇺🇸 917 80 9 Jan 2025 401st Yax42 🇫🇷 917 80 22 days ago 411th lynn 916 54 25 May 2022 412th lifthrasiir 🇰🇷 916 77 11 Dec 2024 412th jared-hughes 916 77 15 Dec 2024 414th AlephSquirrel 916 83 21 Jan 2023 414th edsrzf 🇳🇿 916 83 11 Apr 2025 414th kg583 🇺🇸 916 83 3 May 2025 417th Lydxn 🇨🇦 915 63 16 Jul 2023 418th GrayJoKing 🇦🇺 915 69 29 Apr 2021 418th xsot 🇸🇬 915 69 16 Jun 2024 420th bendiscz 915 111 20 Apr 2020 420th emplv 🇱🇻 915 111 31 Aug 2021 420th jared-hughes 915 111 27 Feb 2024 420th edsrzf 🇳🇿 915 111 26 Oct 2024 420th keelimeguy 🇺🇸 915 111 28 Apr 2025 425th btnlq 914 61 5 Nov 2022 426th Lydxn 🇨🇦 914 70 21 Jun 2022 427th Lydxn 🇨🇦 914 76 14 Oct 2022 427th sean-niemann 🇺🇸 914 76 14 Oct 2022 427th JayXon 🇺🇸 914 76 14 Oct 2022 427th MeWhenI 🇻🇦 914 76 14 Oct 2022 427th Steffan153 🇫🇮 914 76 14 Oct 2022 427th stefangimmillaro 914 76 14 Oct 2022 427th Shanethegamer 🇺🇸 914 76 13 Mar 2023 427th DialFrost 🇸🇬 914 76 26 Dec 2024 435th nwellnhof 🇩🇪 914 78 7 Jan 2021 435th Alex-x90 🇺🇸 914 78 27 Jan 2023 435th inventshah 914 78 27 Jan 2023 435th Steffan153 🇫🇮 914 78 28 Jan 2023 435th sean-niemann 🇺🇸 914 78 7 Mar 2025 440th sisyphus-ppcg 🇦🇺 914 91 18 May 2022 440th ovs-code 🇩🇪 914 91 20 May 2022 440th inventshah 914 91 4 Jun 2022 440th nwellnhof 🇩🇪 914 91 8 Jul 2022 440th saito-ta 🇯🇵 914 91 3 Oct 2022 440th retrohun 914 91 30 Apr 2023 440th btnlq 914 91 17 May 2023 440th kritixilithos 914 91 22 May 2024 448th xkacer 🇨🇿 912 128 20 Nov 2020 449th MeWhenI 🇻🇦 910 62 11 Nov 2021 450th Lydxn 🇨🇦 910 74 14 Jul 2021 Prev 376–450 of 3,004 Next