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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab 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 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 600th tjtnorton 785 60 10ms 29 Nov 2018 600th giacomogallina 785 60 10ms 14 Jun 2019 600th cellobix 785 60 10ms 14 Aug 2019 600th mizuzimu 785 60 9ms 4 Feb 2020 600th ArmaanAS 785 60 9ms 8 Mar 2021 600th RDShah 785 60 10ms 26 Nov 2021 600th QuincyNash 🇺🇸 785 60 9ms 30 Nov 2022 600th msbranicky 785 60 9ms 25 Jul 2023 600th Hebelub 785 60 10ms 5 Jan 2024 600th dokutan 785 60 10ms 23 Jan 2024 600th wh3n3v3r 🇨🇿 785 60 9ms 16 Nov 2024 600th JunkIce 785 60 11ms 23 Feb 2025 600th ffelixm 785 60 11ms 12 Jun 2025 600th RaBa21 🇭🇺 785 60 9ms 10 Jul 2025 600th Flekay 🇩🇪 785 60 9ms 10 Jul 2025 616th dmrichwa 🇺🇸 784 63 9ms 28 Jan 2023 616th targrik 784 63 9ms 19 Feb 2025 618th GrayJoKing 🇦🇺 784 67 5ms 31 Jan 2025 619th inventshah 783 88 51ms 27 Jan 2023 620th hemphen 782 69 366ms 28 Aug 2022 621st jslip 781 35 36ms 5 Sep 2018 621st rak1507 🇬🇧 781 35 37ms 20 Sep 2021 623rd primo-ppcg 🇹🇭 779 54 1,207ms 11 May 2020 624th bforte 779 74 144ms 9 Dec 2018 624th annaproxy 779 74 152ms 12 Jan 2022 624th rak1507 🇬🇧 779 74 157ms 23 Feb 2022 624th snoozingnewt 🇺🇸 779 74 150ms 1 Sep 2024 624th Natanaelel 🇸🇪 779 74 157ms 31 May 2025 629th primo-ppcg 🇹🇭 779 87 27ms 13 Jul 2021 630th GrayJoKing 🇦🇺 777 56 424ms 23 Jul 2024 630th fuzzylojik-golf 🇺🇸 777 56 383ms 8 Aug 2025 632nd bluebear94 776 40 165ms 12 Feb 2018 632nd sisyphus-ppcg 🇦🇺 776 40 143ms 31 Jan 2023 634th Lydxn 🇨🇦 776 65 1ms 11 Oct 2023 635th msrawson 772 61 12ms 31 Aug 2018 636th m-tkach 🇺🇦 772 110 263ms 5 Dec 2023 637th prplz 🇦🇺 769 75 158ms 12 Oct 2021 637th YAJUE114514 769 75 177ms 30 Jul 2025 639th HumanoidCPU 769 85 3ms 7 days ago 640th Yewzir 🇧🇪 766 90 51ms 30 Dec 2023 641st ffelixm 765 71 106ms 12 Jun 2025 642nd bendiscz 765 111 266ms 20 Apr 2020 643rd emgordon154 763 30 49ms 10 Sep 2025 644th lynn 763 57 380ms 17 Feb 2024 644th duckyluuk 🇳🇱 763 57 420ms 27 Mar 2024 646th primo-ppcg 🇹🇭 763 65 2ms 26 Mar 2019 647th janlelis 760 50 921ms 21 Apr 2021 648th Waffle3z 760 62 9ms 27 Feb 2021 648th annaproxy 760 62 9ms 11 Dec 2021 648th KatieLG 🇬🇧 760 62 16ms 11 Dec 2022 648th quimey 760 62 10ms 21 Mar 2023 648th 5cw 🇺🇸 760 62 9ms 6 Jul 2024 648th bzijlema 🇳🇱 760 62 9ms 6 May 2025 648th 4atj 760 62 9ms 30 Jun 2025 648th DrakeSeteraO 760 62 10ms 25 Oct 2025 648th HPWiz 🇳🇿 760 62 9ms 2 days ago 657th Unremarkable 760 65 9ms 28 Sep 2018 657th j55d 760 65 9ms 29 Sep 2018 657th ToriTheChicken 760 65 9ms 24 Jul 2020 657th thisishowmymindworks 🇳🇴 760 65 9ms 24 Jul 2020 657th Irratix 🇳🇱 760 65 9ms 27 Jul 2020 657th ehouais 760 65 8ms 24 Aug 2020 657th cywong-amino 🇭🇰 760 65 9ms 30 Sep 2020 657th sisyphus-ppcg 🇦🇺 760 65 9ms 27 Jan 2021 657th MeWhenI 🇻🇦 760 65 12ms 15 Sep 2021 657th shawphy 760 65 9ms 14 Oct 2021 657th DialFrost 🇸🇬 760 65 9ms 28 Jan 2023 657th tayloia 🇬🇧 760 65 9ms 11 May 2023 657th janbehrens 🇩🇪 760 65 9ms 26 Nov 2023 657th Yewzir 🇧🇪 760 65 9ms 6 Dec 2023 671st CheeryProgrammer 760 71 350ms 21 Nov 2021 671st fuzzylojik-golf 🇺🇸 760 71 350ms 7 Sep 2025 673rd orthoplex 🇨🇽 759 36 38ms 20 Jul 2024 674th GrayJoKing 🇦🇺 757 91 29ms 28 Jan 2023 675th jiaminglimjm 🇲🇾 757 172 10ms 9 Jan 2021 First Prev 601–675 of 3,099 Next Last