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 Binary Lambda Calculus 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 Binary Lambda Calculus 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 374th stefangimmillaro 919 66 3,070ms 29 Oct 2024 374th pardouin 🇫🇷 919 66 3,083ms 31 Oct 2024 374th JayXon 🇺🇸 919 66 3,059ms 7 Nov 2024 374th emgordon154 919 66 3,099ms 20 Nov 2024 380th Lydxn 🇨🇦 919 72 2ms 10 Sep 2022 380th GrayJoKing 🇦🇺 919 72 2ms 10 Sep 2022 380th JayXon 🇺🇸 919 72 2ms 10 Sep 2022 380th btnlq 919 72 2ms 11 Sep 2022 380th Steffan153 🇫🇮 919 72 3ms 19 Aug 2024 385th bforte 919 74 144ms 9 Dec 2018 385th annaproxy 919 74 152ms 12 Jan 2022 385th rak1507 🇬🇧 919 74 157ms 23 Feb 2022 385th snoozingnewt 🇺🇸 919 74 150ms 1 Sep 2024 385th Natanaelel 🇸🇪 919 74 157ms 31 May 2025 390th primo-ppcg 🇹🇭 918 41 159ms 6 Oct 2020 390th Natanaelel 🇸🇪 918 41 126ms 7 Oct 2021 390th sisyphus-ppcg 🇦🇺 918 41 162ms 31 Jan 2023 393rd Steffan153 🇫🇮 918 64 7ms 11 Dec 2023 393rd Yewzir 🇧🇪 918 64 10ms 14 Dec 2023 393rd Lydxn 🇨🇦 918 64 8ms 20 Dec 2023 393rd dokutan 918 64 7ms 19 May 2024 393rd emgordon154 918 64 7ms 5 Dec 2024 393rd edsrzf 🇳🇿 918 64 6ms 21 Jan 2025 393rd sean-niemann 🇺🇸 918 64 10ms 19 Apr 2025 393rd kg583 🇺🇸 918 64 7ms 30 Jul 2025 401st primo-ppcg 🇹🇭 918 80 321ms 21 Nov 2021 401st prplz 🇦🇺 918 80 367ms 21 Nov 2021 401st annaproxy 918 80 361ms 5 May 2022 401st tomtheisen 🇺🇸 918 80 295ms 17 Jan 2023 401st Steffan153 🇫🇮 918 80 391ms 28 Jan 2023 401st AdrienHache 🇫🇷 918 80 364ms 30 May 2023 401st MeWhenI 🇻🇦 918 80 387ms 26 Jul 2023 401st DialFrost 🇸🇬 918 80 352ms 26 Dec 2024 401st sean-niemann 🇺🇸 918 80 319ms 9 Jan 2025 401st Yax42 🇫🇷 918 80 351ms 15 Aug 2025 411th Lydxn 🇨🇦 917 63 3ms 16 Jul 2023 411th Steffan153 🇫🇮 917 63 133ms 22 Aug 2024 411th sean-niemann 🇺🇸 917 63 136ms 22 Aug 2024 411th JayXon 🇺🇸 917 63 142ms 23 Aug 2024 411th lukegustafson 🇺🇸 917 63 135ms 12 Sep 2024 411th emplv 🇱🇻 917 63 133ms 17 Jul 2025 417th lifthrasiir 🇰🇷 917 77 9ms 11 Dec 2024 417th jared-hughes 917 77 7ms 15 Dec 2024 419th lynn 916 54 192ms 25 May 2022 420th GrayJoKing 🇦🇺 916 69 4ms 29 Apr 2021 420th xsot 🇸🇬 916 69 3ms 16 Jun 2024 422nd AlephSquirrel 916 83 6ms 21 Jan 2023 422nd edsrzf 🇳🇿 916 83 5ms 11 Apr 2025 422nd kg583 🇺🇸 916 83 6ms 3 May 2025 425th bendiscz 916 111 267ms 20 Apr 2020 425th emplv 🇱🇻 916 111 255ms 31 Aug 2021 425th jared-hughes 916 111 255ms 27 Feb 2024 425th edsrzf 🇳🇿 916 111 263ms 26 Oct 2024 425th keelimeguy 🇺🇸 916 111 259ms 28 Apr 2025 430th btnlq 915 61 2ms 5 Nov 2022 431st Lydxn 🇨🇦 915 76 111ms 14 Oct 2022 431st sean-niemann 🇺🇸 915 76 115ms 14 Oct 2022 431st JayXon 🇺🇸 915 76 105ms 14 Oct 2022 431st MeWhenI 🇻🇦 915 76 111ms 14 Oct 2022 431st Steffan153 🇫🇮 915 76 121ms 14 Oct 2022 431st stefangimmillaro 915 76 104ms 14 Oct 2022 431st Shanethegamer 🇺🇸 915 76 110ms 13 Mar 2023 431st DialFrost 🇸🇬 915 76 129ms 26 Dec 2024 439th nwellnhof 🇩🇪 915 78 2ms 7 Jan 2021 439th Alex-x90 🇺🇸 915 78 2ms 27 Jan 2023 439th inventshah 915 78 2ms 27 Jan 2023 439th Steffan153 🇫🇮 915 78 2ms 28 Jan 2023 439th sean-niemann 🇺🇸 915 78 2ms 7 Mar 2025 444th Lydxn 🇨🇦 914 70 39ms 21 Jun 2022 445th sisyphus-ppcg 🇦🇺 914 91 1ms 18 May 2022 445th ovs-code 🇩🇪 914 91 1ms 20 May 2022 445th inventshah 914 91 1ms 4 Jun 2022 445th nwellnhof 🇩🇪 914 91 2ms 8 Jul 2022 445th saito-ta 🇯🇵 914 91 2ms 3 Oct 2022 445th retrohun 914 91 1ms 30 Apr 2023 First Prev 376–450 of 3,093 Next Last