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 373rd btnlq 918 72 11 Sep 2022 373rd Steffan153 🇫🇮 918 72 19 Aug 2024 378th bforte 918 74 9 Dec 2018 378th annaproxy 918 74 12 Jan 2022 378th rak1507 🇬🇧 918 74 23 Feb 2022 378th snoozingnewt 🇺🇸 918 74 1 Sep 2024 378th Natanaelel 🇸🇪 918 74 31 May 2025 383rd Steffan153 🇫🇮 917 63 22 Aug 2024 383rd sean-niemann 🇺🇸 917 63 22 Aug 2024 383rd JayXon 🇺🇸 917 63 23 Aug 2024 383rd lukegustafson 🇺🇸 917 63 12 Sep 2024 383rd emplv 🇱🇻 917 63 17 Jul 2025 388th Steffan153 🇫🇮 917 64 11 Dec 2023 388th Yewzir 🇧🇪 917 64 14 Dec 2023 388th Lydxn 🇨🇦 917 64 20 Dec 2023 388th dokutan 917 64 19 May 2024 388th emgordon154 917 64 5 Dec 2024 388th edsrzf 🇳🇿 917 64 21 Jan 2025 388th sean-niemann 🇺🇸 917 64 19 Apr 2025 388th kg583 🇺🇸 917 64 30 Jul 2025 396th inventshah 917 66 24 Oct 2024 396th btnlq 917 66 26 Oct 2024 396th stefangimmillaro 917 66 29 Oct 2024 396th pardouin 🇫🇷 917 66 31 Oct 2024 396th JayXon 🇺🇸 917 66 7 Nov 2024 396th emgordon154 917 66 20 Nov 2024 402nd primo-ppcg 🇹🇭 917 80 21 Nov 2021 402nd prplz 🇦🇺 917 80 21 Nov 2021 402nd annaproxy 917 80 5 May 2022 402nd tomtheisen 🇺🇸 917 80 17 Jan 2023 402nd Steffan153 🇫🇮 917 80 28 Jan 2023 402nd AdrienHache 🇫🇷 917 80 30 May 2023 402nd MeWhenI 🇻🇦 917 80 26 Jul 2023 402nd DialFrost 🇸🇬 917 80 26 Dec 2024 402nd sean-niemann 🇺🇸 917 80 9 Jan 2025 402nd Yax42 🇫🇷 917 80 25 days ago 412th lynn 916 54 25 May 2022 413th lifthrasiir 🇰🇷 916 77 11 Dec 2024 413th jared-hughes 916 77 15 Dec 2024 415th AlephSquirrel 916 83 21 Jan 2023 415th edsrzf 🇳🇿 916 83 11 Apr 2025 415th kg583 🇺🇸 916 83 3 May 2025 418th Lydxn 🇨🇦 915 63 16 Jul 2023 419th GrayJoKing 🇦🇺 915 69 29 Apr 2021 419th xsot 🇸🇬 915 69 16 Jun 2024 421st bendiscz 915 111 20 Apr 2020 421st emplv 🇱🇻 915 111 31 Aug 2021 421st jared-hughes 915 111 27 Feb 2024 421st edsrzf 🇳🇿 915 111 26 Oct 2024 421st keelimeguy 🇺🇸 915 111 28 Apr 2025 426th btnlq 914 61 5 Nov 2022 427th Lydxn 🇨🇦 914 70 21 Jun 2022 428th Lydxn 🇨🇦 914 76 14 Oct 2022 428th sean-niemann 🇺🇸 914 76 14 Oct 2022 428th JayXon 🇺🇸 914 76 14 Oct 2022 428th MeWhenI 🇻🇦 914 76 14 Oct 2022 428th Steffan153 🇫🇮 914 76 14 Oct 2022 428th stefangimmillaro 914 76 14 Oct 2022 428th Shanethegamer 🇺🇸 914 76 13 Mar 2023 428th DialFrost 🇸🇬 914 76 26 Dec 2024 436th nwellnhof 🇩🇪 914 78 7 Jan 2021 436th Alex-x90 🇺🇸 914 78 27 Jan 2023 436th inventshah 914 78 27 Jan 2023 436th Steffan153 🇫🇮 914 78 28 Jan 2023 436th sean-niemann 🇺🇸 914 78 7 Mar 2025 441st sisyphus-ppcg 🇦🇺 914 91 18 May 2022 441st ovs-code 🇩🇪 914 91 20 May 2022 441st inventshah 914 91 4 Jun 2022 441st nwellnhof 🇩🇪 914 91 8 Jul 2022 441st saito-ta 🇯🇵 914 91 3 Oct 2022 441st retrohun 914 91 30 Apr 2023 441st btnlq 914 91 17 May 2023 441st kritixilithos 914 91 22 May 2024 449th xkacer 🇨🇿 912 128 20 Nov 2020 450th MeWhenI 🇻🇦 910 62 11 Nov 2021 Prev 376–450 of 3,008 Next