Happy Numbers in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Tower of Hanoi 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 Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 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 Erlang 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 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 Tower of Hanoi 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 Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 376th SirBogman 🇺🇸 862 36 149ms 28 Aug 2019 377th prplz 🇦🇺 862 61 2ms 12 Mar 2019 377th sisyphus-ppcg 🇦🇺 862 61 2ms 12 Jan 2021 379th nwellnhof 🇩🇪 862 80 57ms 18 Jan 2022 380th ovs-code 🇩🇪 861 67 130ms 4 Jul 2022 381st m-tkach 🇺🇦 861 80 28ms 5 Dec 2023 382nd primo-ppcg 🇹🇭 860 49 116ms 18 Jun 2019 382nd Steffan153 🇫🇮 860 49 116ms 25 Apr 2023 384th primo-ppcg 🇹🇭 860 59 1ms 15 Feb 2020 384th DaDerpDuck 860 59 1ms 26 Jan 2021 384th Waffle3z 860 59 1ms 26 Jan 2021 384th sisyphus-ppcg 🇦🇺 860 59 1ms 8 Jun 2021 384th Steffan153 🇫🇮 860 59 1ms 25 Apr 2023 389th primo-ppcg 🇹🇭 859 48 99ms 25 Dec 2020 389th sisyphus-ppcg 🇦🇺 859 48 99ms 8 Jun 2021 391st btnlq 856 45 3ms 22 Oct 2023 392nd HPWiz 🇳🇿 854 32 51ms 17 Aug 2023 393rd emgordon154 853 51 351ms 13 Apr 2025 393rd CaedenHarper 🇨🇦 853 51 348ms 29 Jul 2025 395th DaCuteRaccoon 853 65 3ms 30 Nov 2022 395th snoozingnewt 🇨🇦 853 65 4ms 1 Sep 2024 395th LostSyntax21 🇬🇧 853 65 2ms 8 Jan 2025 398th stefangimmillaro 849 64 101ms 15 Jul 2023 399th sisyphus-ppcg 🇦🇺 849 77 3ms 3 Feb 2023 400th emplv 🇱🇻 849 100 256ms 2 Sep 2021 400th Shanethegamer 🇺🇸 849 100 262ms 29 Mar 2023 400th Yewzir 🇧🇪 849 100 270ms 26 Oct 2023 400th emgordon154 849 100 254ms 17 Jan 2025 400th error256 849 100 266ms 15 Feb 2025 400th plcc0 849 100 256ms 21 Mar 2025 400th fuzzylojik-golf 🇺🇸 849 100 268ms 3 Sep 2025 400th CaedenHarper 🇨🇦 849 100 247ms 3 days ago 408th sean-niemann 🇺🇸 848 27 44ms 22 Jul 2022 408th lynn 848 27 50ms 22 Jul 2022 408th MeWhenI 🇻🇦 848 27 45ms 23 Jul 2022 408th sisyphus-ppcg 🇦🇺 848 27 41ms 24 Jul 2022 408th jared-hughes 848 27 41ms 29 Jul 2022 408th DaCuteRaccoon 848 27 43ms 30 Nov 2022 408th AlephSquirrel 848 27 46ms 30 Dec 2022 408th DialFrost 🇸🇬 848 27 42ms 28 Jan 2023 408th CornerMercury 🇬🇧 848 27 42ms 24 Aug 2023 408th ovs-code 🇩🇪 848 27 162ms 2 Feb 2024 408th snoozingnewt 🇨🇦 848 27 44ms 1 Sep 2024 408th pardouin 🇫🇷 848 27 48ms 21 Sep 2024 408th LostSyntax21 🇬🇧 848 27 56ms 8 Jan 2025 408th edsrzf 🇳🇿 848 27 60ms 9 Mar 2025 408th CaedenHarper 🇨🇦 848 27 47ms 14 Jul 2025 408th fuzzylojik-golf 🇺🇸 848 27 45ms 9 Sep 2025 424th pardouin 🇫🇷 846 26 2ms 14 Apr 2025 425th stefangimmillaro 842 50 118ms 22 Aug 2023 426th MeWhenI 🇻🇦 841 49 97ms 22 Aug 2023 427th Irratix 🇳🇱 841 56 10ms 30 Apr 2022 427th GrayJoKing 🇦🇺 841 56 9ms 7 Jul 2022 427th Alex-x90 🇺🇸 841 56 10ms 28 Jan 2023 427th inventshah 841 56 9ms 28 Jan 2023 427th neel11235813 841 56 13ms 7 Feb 2023 427th roupiq 🇵🇱 841 56 9ms 18 Feb 2024 427th Seek64 🇩🇪 841 56 9ms 15 Jul 2024 427th emgordon154 841 56 9ms 6 Sep 2024 427th DialFrost 🇸🇬 841 56 10ms 26 Dec 2024 427th fuzzylojik-golf 🇺🇸 841 56 9ms 9 Jun 2025 427th duckyluuk 🇳🇱 841 56 9ms 5 Jul 2025 427th BREMAUCY 🇫🇷 841 56 9ms 26 Jul 2025 427th snoozingnewt 🇨🇦 841 56 11ms 9 days ago 440th jared-hughes 840 101 264ms 27 Feb 2024 440th edsrzf 🇳🇿 840 101 254ms 26 Oct 2024 440th keelimeguy 🇺🇸 840 101 261ms 28 Apr 2025 440th albanian-laundromat 840 101 246ms 3 days ago 444th mcreenan 839 37 170ms 22 Apr 2018 444th ovs-code 🇩🇪 839 37 143ms 31 Dec 2023 446th MeWhenI 🇻🇦 838 74 471ms 5 Mar 2022 447th GrayJoKing 🇦🇺 837 42 69ms 13 Sep 2023 447th Lydxn 🇨🇦 837 42 69ms 13 Sep 2023 447th Steffan153 🇫🇮 837 42 70ms 15 Sep 2023 447th primo-ppcg 🇹🇭 837 42 75ms 16 Sep 2023 First Prev 376–450 of 3,120 Next Last