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 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic 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 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 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 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 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 371st emgordon154 919 66 3,320ms 20 Nov 2024 377th Lydxn 🇨🇦 919 72 2ms 10 Sep 2022 377th GrayJoKing 🇦🇺 919 72 2ms 10 Sep 2022 377th JayXon 🇺🇸 919 72 2ms 10 Sep 2022 377th btnlq 919 72 2ms 11 Sep 2022 377th Steffan153 🇫🇮 919 72 3ms 19 Aug 2024 382nd bforte 919 74 144ms 9 Dec 2018 382nd annaproxy 919 74 152ms 12 Jan 2022 382nd rak1507 🇬🇧 919 74 157ms 23 Feb 2022 382nd snoozingnewt 🇺🇸 919 74 150ms 1 Sep 2024 382nd Natanaelel 🇸🇪 919 74 157ms 31 May 2025 387th primo-ppcg 🇹🇭 918 41 159ms 6 Oct 2020 387th Natanaelel 🇸🇪 918 41 126ms 7 Oct 2021 387th sisyphus-ppcg 🇦🇺 918 41 162ms 31 Jan 2023 390th Steffan153 🇫🇮 918 64 7ms 11 Dec 2023 390th Yewzir 🇧🇪 918 64 10ms 14 Dec 2023 390th Lydxn 🇨🇦 918 64 8ms 20 Dec 2023 390th dokutan 918 64 7ms 19 May 2024 390th emgordon154 918 64 7ms 5 Dec 2024 390th edsrzf 🇳🇿 918 64 6ms 21 Jan 2025 390th sean-niemann 🇺🇸 918 64 10ms 19 Apr 2025 390th kg583 🇺🇸 918 64 7ms 30 Jul 2025 398th primo-ppcg 🇹🇭 918 80 321ms 21 Nov 2021 398th prplz 🇦🇺 918 80 367ms 21 Nov 2021 398th annaproxy 918 80 361ms 5 May 2022 398th tomtheisen 🇺🇸 918 80 359ms 17 Jan 2023 398th Steffan153 🇫🇮 918 80 391ms 28 Jan 2023 398th AdrienHache 🇫🇷 918 80 364ms 30 May 2023 398th MeWhenI 🇻🇦 918 80 387ms 26 Jul 2023 398th DialFrost 🇸🇬 918 80 352ms 26 Dec 2024 398th sean-niemann 🇺🇸 918 80 319ms 9 Jan 2025 398th Yax42 🇫🇷 918 80 351ms 15 Aug 2025 408th Lydxn 🇨🇦 917 63 3ms 16 Jul 2023 408th Steffan153 🇫🇮 917 63 152ms 22 Aug 2024 408th sean-niemann 🇺🇸 917 63 155ms 22 Aug 2024 408th JayXon 🇺🇸 917 63 169ms 23 Aug 2024 408th lukegustafson 🇺🇸 917 63 132ms 12 Sep 2024 408th emplv 🇱🇻 917 63 144ms 17 Jul 2025 414th lifthrasiir 🇰🇷 917 77 9ms 11 Dec 2024 414th jared-hughes 917 77 7ms 15 Dec 2024 416th lynn 916 54 192ms 25 May 2022 417th GrayJoKing 🇦🇺 916 69 4ms 29 Apr 2021 417th xsot 🇸🇬 916 69 4ms 16 Jun 2024 419th AlephSquirrel 916 83 6ms 21 Jan 2023 419th edsrzf 🇳🇿 916 83 5ms 11 Apr 2025 419th kg583 🇺🇸 916 83 6ms 3 May 2025 422nd bendiscz 916 111 245ms 20 Apr 2020 422nd emplv 🇱🇻 916 111 288ms 31 Aug 2021 422nd jared-hughes 916 111 278ms 27 Feb 2024 422nd edsrzf 🇳🇿 916 111 277ms 26 Oct 2024 422nd keelimeguy 🇺🇸 916 111 250ms 28 Apr 2025 427th btnlq 915 61 2ms 5 Nov 2022 428th Lydxn 🇨🇦 915 76 111ms 14 Oct 2022 428th sean-niemann 🇺🇸 915 76 115ms 14 Oct 2022 428th JayXon 🇺🇸 915 76 105ms 14 Oct 2022 428th MeWhenI 🇻🇦 915 76 111ms 14 Oct 2022 428th Steffan153 🇫🇮 915 76 121ms 14 Oct 2022 428th stefangimmillaro 915 76 104ms 14 Oct 2022 428th Shanethegamer 🇺🇸 915 76 110ms 13 Mar 2023 428th DialFrost 🇸🇬 915 76 129ms 26 Dec 2024 436th nwellnhof 🇩🇪 915 78 2ms 7 Jan 2021 436th Alex-x90 🇺🇸 915 78 2ms 27 Jan 2023 436th inventshah 915 78 2ms 27 Jan 2023 436th Steffan153 🇫🇮 915 78 2ms 28 Jan 2023 436th sean-niemann 🇺🇸 915 78 2ms 7 Mar 2025 441st Lydxn 🇨🇦 914 70 39ms 21 Jun 2022 442nd sisyphus-ppcg 🇦🇺 914 91 1ms 18 May 2022 442nd ovs-code 🇩🇪 914 91 1ms 20 May 2022 442nd inventshah 914 91 1ms 4 Jun 2022 442nd nwellnhof 🇩🇪 914 91 2ms 8 Jul 2022 442nd saito-ta 🇯🇵 914 91 2ms 3 Oct 2022 442nd retrohun 914 91 1ms 30 Apr 2023 442nd btnlq 914 91 2ms 17 May 2023 442nd kritixilithos 914 91 1ms 22 May 2024 450th edsrzf 🇳🇿 911 61 1,094ms 15 Sep 2025 First Prev 376–450 of 3,081 Next Last