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 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 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 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 Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 447th saito-ta 🇯🇵 914 91 2ms 3 Oct 2022 447th retrohun 914 91 1ms 30 Apr 2023 447th btnlq 914 91 2ms 17 May 2023 447th kritixilithos 914 91 1ms 22 May 2024 455th edsrzf 🇳🇿 911 61 628ms 15 Sep 2025 455th sean-niemann 🇺🇸 911 61 633ms 16 Sep 2025 455th DialFrost 🇸🇬 911 61 730ms 3 days ago 455th Yewzir 🇧🇪 911 61 646ms 4 hours ago 459th MeWhenI 🇻🇦 911 62 114ms 11 Nov 2021 460th sisyphus-ppcg 🇦🇺 911 77 2ms 3 Feb 2023 461st Shanethegamer 🇺🇸 910 63 75ms 18 May 2022 461st Yewzir 🇧🇪 910 63 80ms 9 Nov 2023 461st Betuaredead 910 63 72ms 13 Nov 2023 461st albanian-laundromat 910 63 73ms 7 days ago 465th Lydxn 🇨🇦 910 74 54ms 14 Jul 2021 465th JayXon 🇺🇸 910 74 48ms 20 Aug 2021 465th stefangimmillaro 910 74 42ms 22 Apr 2023 468th pihart 909 66 10ms 22 Jun 2020 468th Argeento 🇵🇱 909 66 10ms 13 Nov 2020 468th ovs-code 🇩🇪 909 66 10ms 29 Jul 2024 471st sisyphus-ppcg 🇦🇺 909 91 1ms 20 Jul 2022 471st UnderKoen 🇳🇱 909 91 1ms 6 Mar 2023 471st m-tkach 🇺🇦 909 91 2ms 9 Mar 2023 471st Lydxn 🇨🇦 909 91 1ms 19 Jul 2023 475th dvargas46 🇺🇸 908 55 49ms 15 Nov 2022 476th Waffle3z 908 74 2ms 9 Jul 2021 477th Lydxn 🇨🇦 908 85 472ms 27 Feb 2022 477th JayXon 🇺🇸 908 85 455ms 28 Feb 2022 477th GrayJoKing 🇦🇺 908 85 438ms 13 Mar 2022 480th anter69 🇭🇺 907 55 1,011ms 10 Mar 2025 481st prplz 🇦🇺 907 75 158ms 12 Oct 2021 481st YAJUE114514 907 75 177ms 30 Jul 2025 483rd JayXon 🇺🇸 907 77 1ms 28 Jan 2024 483rd GolfingSuccess 🇬🇷 907 77 1ms 19 Mar 2025 485th fuzzylojik-golf 🇺🇸 907 81 367ms 7 Sep 2025 486th frankgraziano 906 144 10ms 11 Aug 2025 486th primo-ppcg 🇹🇭 906 144 10ms 13 Aug 2025 486th DialFrost 🇸🇬 906 144 10ms 13 Aug 2025 489th MeWhenI 🇻🇦 905 67 4ms 16 Dec 2024 489th Yewzir 🇧🇪 905 67 5ms 20 Dec 2024 489th GrayJoKing 🇦🇺 905 67 5ms 31 Jan 2025 492nd Yax42 🇫🇷 905 92 339ms 3 days ago 493rd canissimia 🇦🇶 905 194 4ms 21 Sep 2021 494th MeWhenI 🇻🇦 904 65 7ms 12 Dec 2023 495th Steffan153 🇫🇮 904 91 28ms 28 Jan 2023 495th GrayJoKing 🇦🇺 904 91 29ms 28 Jan 2023 495th Lydxn 🇨🇦 904 91 28ms 28 Jan 2023 495th m-tkach 🇺🇦 904 91 27ms 18 Jan 2024 495th sean-niemann 🇺🇸 904 91 29ms 19 May 2025 500th janbehrens 🇩🇪 903 70 4ms 26 Nov 2023 501st emplv 🇱🇻 903 77 104ms 14 Mar 2023 502nd lynn 903 79 2ms 2 Oct 2021 502nd MeWhenI 🇻🇦 903 79 2ms 21 Jun 2022 502nd m-tkach 🇺🇦 903 79 2ms 9 Mar 2023 502nd ovs-code 🇩🇪 903 79 2ms 24 Mar 2024 502nd xsot 🇸🇬 903 79 2ms 23 May 2024 502nd DialFrost 🇸🇬 903 79 14ms 17 Dec 2024 508th rucin93 🇵🇱 902 64 134ms 6 Sep 2024 509th Lydxn 🇨🇦 901 91 27ms 16 Apr 2022 509th JayXon 🇺🇸 901 91 29ms 17 Apr 2022 509th m-tkach 🇺🇦 901 91 27ms 9 Mar 2023 512th juliansiebert 🇩🇪 900 55 211ms 31 Jul 2022 513th tailorspy 899 96 54ms 22 Sep 2024 514th thospel 896 42 140ms 25 Jun 2018 514th Lydxn 🇨🇦 896 42 148ms 21 Feb 2023 516th DaDerpDuck 896 75 2ms 24 Jan 2021 517th ETHproductions 🇺🇸 895 67 10ms 14 Apr 2018 518th Steffan153 🇫🇮 895 78 1ms 29 Oct 2023 518th sean-niemann 🇺🇸 895 78 1ms 22 Dec 2024 520th MeWhenI 🇻🇦 895 93 1ms 18 May 2022 521st MeWhenI 🇻🇦 894 75 4ms 22 Mar 2024 522nd marcin7Cd 894 85 7ms 15 Feb 2021 522nd primo-ppcg 🇹🇭 894 85 7ms 1 Mar 2021 522nd CLOStrophobic 🇮🇹 894 85 6ms 14 Feb 2025 525th lifthrasiir 🇰🇷 893 28 3ms 29 Nov 2024 First Prev 451–525 of 3,099 Next Last